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1. Numeric keys Soft Global Keys operate specific component functions regardless of the System Component Key setting and are available at all times System Component Keys Preamplifier and Integrated Amplifier Global Keys operate as follows Global Keys CD vol amp Adjusts the preamplifier volume and the volume control position mute Reduces the preamplifier volume to zero A Volume and mute keys second press restores the volume bal 4 amp gt Adjusts the channel balance Some Naim amplifiers have control of channel balance available only from the remote handset On these products the balance will automatically centre as it reaches the mid point Centring is indicated by a flashing volume control indicator To resume adjustment once the balance has centred the bal key must be released and re pressed Prog Key Soft mon Enables the output of a tape recorder to be heard while recording The source to be recorded is chosen by the input selection buttons in the normal way A second operation of the mon key restores normal operation Mon alternatively operates the mono function on appropriately equipped preamplifiers Preamplifier and Integrated Amplifier Soft Keys operate as follows disp Switches the front panel button indicators off and on prog Press and hold to switch the preamplifier or integrated amplifier into program mode numeric Enables direct selection of source inputs E25
2. E26 NAP 500 Power Amplifier The NAP 500 and NAP 500PS should be installed on a dedicated equipment stand intended for the purpose and should be in their final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAP 500 The NAP 500 power button is located on the front panel of the NAP 500PS Power Supply Care should be taken when siting the NAP 500 to ensure that the top and bottom ventilation grids are not blocked The NAP 500 and NAP 500PS are very heavy and care should be taken when lifting or moving them Make sure that the surface they are to be placed on can support the full weight 28 1 General Connections Notes 28 3 Loudspeaker Cable and Connectors The negative input and output connections for each channel are common The mains earth ground should always be connected regardless of what other equipment is used in conjunction with Naim power amplifiers This only Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 500 Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety regulations these should always be used grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of the whole system should be
3. SAFETY INSTRUCTIONS In order to comply with current European safety regulations it is essential that the Naim loudspeaker connectors supplied with amplifiers and loudspeakers are used Do not under any circumstances allow anyone to modify your Naim equipment without first checking with the factory your retailer or your distributor Unauthorised modifications will invalidate your guarantee Equipment must not be exposed to dripping or splashing and no objects filled with liquid such as vases should be placed on the equipment For your own safety do not under any circumstances open Naim equipment without first disconnecting it from the mains Warning an apparatus with CLASS construction shall be connected to a mains socket outlet with a protective earthing connection Where the mains plug or an appliance coupler is used as the disconnect device the disconnect device shall remain readily operable To disconnect the equipment from the mains remove the mains plug from the mains outlet The following label is attached to all mains powered equipment WARNING THIS APPARATUS MUST BE EARTHED NOTE This equipment has been tested and found to comply with the relevant EMC and Safety Standards and where applicable also complies with the limits for a class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential instal
4. TO CONNECT THE LOUDSPEAKERS minutes Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels 35 NAP 250 Connections 35 1 NAP 250 Rear WAR WING WARI HING EAKER oes e AD THE MANUAL BEFO mains input left fight signal input and fuse speaker speaker ch L amp ch2 R 36 NAP 250 Specification Power Output 80 Watts per channel 80 O 400 VA Transient Quiescent Consumption 25VA Voltage Gain 29dB Input Impedance 18kQ Frequency Response 3dB 2Hz and 65kHz Dimensions H x W x D 87 x 432 x 314mm Weight 15 8kg Mains Supply 100 120V or 220 240V 50 60Hz NAPV 145 Power Amplifier 37 Installation and Operation The NAPV 145 is a mono power amplifier intended for use in audio visual systems The NAPV 145 should be installed on a dedicated equipment stand intended for the purpose and should be in its final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAPV 145 The NAPV 145 power button is located on the front panel The NAPV 145 is heavy and care should be taken when lifting or moving it Make sure that the surface it is to be placed on can support the full weight 37 1 General Connections Notes The negative input and output connectio
5. The NAC 552 preamplifier does not incorporate an internal power supply and can be used only in conjunction with the NAC 552PS power supply Diagram 5 3 illustrates connection of the NAC 552 to its power supply The four transit screws on the underside of the NAC 552 case should be removed before use and must be replaced if the unit is to be re packed and shipped These transit screws must not be used in any other Naim product Do not invert the NAC 552 once the transit screws are removed The preamplifier and power supply should be installed on a dedicated equipment stand intended for the purpose Do not stand either directly on top of another item of equipment Care should be taken to ensure that the preamplifier is level Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 The preamplifier and power supply should be installed in their final locations before connecting cables or switching on Ensure that power amplifiers are switched off and that the preamplifier volume is turned down before the power supply is switched on The power button is located on the power supply front panel The units are heavy and care should be taken when lifting or moving them Make sure that the surface on which they are to be placed can support their weight The following Section 4 paragraphs describe installation features and functions specific to the NAC 552 Operational features common to all p
6. trigger input socket should always be used Ensure when connecting speakers that they are in phase That is the positive and negative connection The negative input and output connections within orientation at both the speaker and amplifier ends of the each zone are common but there is no signal negative cable is the same for all channels connection between them The mains earth grounds only the case and the screen within the transformer and is not 49 3 Protection 49 2 General Connections Notes connected to the signal negative The mains earth must The NAP 6 50 fan speed is increased automatically in always be connected to ground regardless of any other response to an increase in heat dissipation If the internal equipment used In order to avoid hum loops the signal heatsink reaches 70 C due to prolonged running at very negative of the whole system should be connected to the high dissipation blocked airflow or fan failure the mains mains earth in one place supply will be interrupted and the illuminated logo will go off until the amplifier has cooled down This may take up to thirty minutes 50 NAP 6 50 Connections zone zone 2 zone 3 speaker speaker speaker trigger ch left ch left 50 1 NAP 6 50 Rear mains input and fuse zone 1 speaker speaker speaker Power Output 30 Watts per channel 80 Voltage Gain 29dB Input Impedance 18kQ Frequency Response 3dB 3Hz and 50kHz Standby
7. 3Hz and 50kHz Dimensions H x W x D 70 x 432 x 301mm Weight 7 9kg Mains Supply 100 120V or 220 240V 50 60Hz E34 NAP 6 50 Power Amplifier 49 Installation and Connection The NAP 6 50 is a six channel power amplifier intended for use in multi room audio systems The six channels are configured as three sets of two intended to drive one pair of loudspeakers in three zones Audio input for each zone is via 4 pin DIN sockets Care should be taken when siting the NAP 6 50 to ensure that the ventilation and fan apertures are not obstructed The NAPV 6 50 is heavy and care should be taken when lifting or moving it Make sure its installation support can carry its full weight 49 10 peratio n Unused zone input sockets should be fitted with the supplied yellow shorting plugs Failure to use the shorting plugs may reduce the reliability with which the NAP 6 50 drops into standby mode Do not use the shorting plugs on Naim equipment other than the NAP 6 50 The NAP 6 50 is intended to remain permanently powered via its front panel switch When not in use it will drop into standby mode Standby mode is indicated by the front panel logo illuminating red Switch from standby to operational mode takes place automatically when a Naim Audio loudspeaker connectors are supplied In order signal is detected at any input or alternatively can be to comply with current European safety regulations these controlled via the 3 5mm jack
8. Consumption lt 1W Trigger Input Voltage 4 5V to 12V plug tip ve Dimensions H x W x D 87 x 432 x 314mm Weight 13 5kg Mains Supply 100 120V or 220 240V 50 60Hz E35 E36 Declarations of Conformity 52 Declaration of conformity to appropriate standards Manufacturer Products Safety EMC Emissions Tested to and Immunity Tested to In accordance with Naim Audio Limited Southampton Road Salisbury England SP1 2LN Preamplifiers NAC 552 NAC 252 NAC 282 NAC 202 NAC 122x Integrated Amplifiers Supernait NAIT 5i Power Amplifiers NAP 500 NAP 500PS NAP 300 NAP 300PS NAP 250 NAPV 145 NAP 200 NAP 150x NAPV 175 NAP 6 50 EN 60065 EN 55013 Sound and television broadcast receivers and associated equipment BS EN 61000 3 2 2002 Limits for harmonic current emissions equipment input currents up to including 16 A per phase EN55020 Electromagnetic immunity of broadcast receivers and associated equipment CISPR 16 1 Radio disturbance and immunity measuring apparatus CISPR 16 2 Methods of measurement of disturbances and immunity IEC 801 2 8kV air gap 4kV contact performance criterion B IEC 801 3 3V m 20cB performance criterion A IEC 801 4 1kV AC lines 0 5kV signal lines performance criterion B Products that display the crossed out wheeled bin logo cannot be disposed of as domestic waste These products must be disposed of at facilities capable of re cycling them and approp
9. NAC 252 Controls and Connections NAC 252 Specification NAC 282 Introduction and Installation NAC 282 Controls and Connections NAC 282 Specification NAC 202 Introduction and Installation NAC 202 Controls and Connections NAC 202 Specification NAC 122x Introduction and Installation NAC 122x Controls and Connections NAC 122x Specification SUPERNAIT Introduction and Installation SUPERNAIT Controls and Connections SUPERNAIT Specification Nait 5i Introduction and Installation Nait 5i Controls and Connections Nait 5i Specification Preamplifier and Integrated Amplifier Operation R com Remote Handset NARCOM 4 Remote Handset NAP 500 Installation and Operation NAP 500 Connections NAP 500 Specification NAP 300 Installation and Operation NAP 300 Connections NAP 300 Specification NAP 250 Installation and Operation NAP 250 Connections NAP 250 Specification NAPV 145 Installation and Operation NAPV 145 Connections NAPV 145 Specification NAP 200 Installation and Operation NAP 200 Connections NAP 200 Specification NAP 150x Installation and Operation NAP 150x Connections NAP 150x Specification NAPV 175 Installation and Operation NAPV 175 Connections NAPV 175 Specification NAP 6 50 Installation and Operation NAP 6 50 Connections NAP 6 50 Specification Declarations of Conformity Introduction Naim Audio products are conceived with performance as the top priority Careful installation will help ensure that their full poten
10. RCA Phono socket inputs The appropriate input button indicator will flash three times on selection of the RCA Phono option and once on selection of the DIN option To exit from program mode press and hold the prog key on the remote until the volume indicator stops flashing volume OO QOOOOOO source selection NAC 202 Preamplifier 14 2 NAC 202 Rear signal in 6 power supply output option sockets to NAPSC RC5 in g nd alternative with link and blanking plugs fitted CIN inputs and record outputs in in2 in3 tin4 in5 in cd RCA aux 2 RCA to power RS232 cd tuner tape av aux aux2 Phono Phono amplifier interface ch1 L ch1 L with ch2 R ch2 R internal power supply Note The NAC 202 AUX 2 input is provided with two sockets The upper socket fitted on delivery with a blanking cover is intended for use with a Stageline or Prefix Phono stage and incorporates an appropriate DC power supply The two sockets must not be used simultaneously Note The RS232 comms interface is an optional upgrade It can be specified at time of order or fitted retrospectively Contact your local representative or Naim Audio directly for further information 14 3 NAC 202 Connected to Hi Cap and NAPSC PLEASE READ THE MANUAL BEFORE USE 15 NAC 202 Specification Input Sensitivities 75mV 47kKQO mains input additional to mono or dual Overload Margins 40c0B and fuse lg out antics all
11. available inputs and Unity Gain disabled When the desired inputs are indicated stop pressing the button The selected inputs will then be enabled for Unity Gain The handset can also be used to select Unity Gain See table 25 10 Unity Gain only becomes operational on exit from program mode by pressing and holding the handset prog key Note The Unity Gain feature must be used with care It effectively by passes the preamplifier volume and balance controls leaving any signal connected to a Unity Gain input to be passed to the power amplifier and speakers at full volume In order to reduce the potential for inadvertent mishap any subsequent modifications to input assignment will automatically disable previously set up Unity Gain inputs Additionally if an input is selected which has Unity Gain enabled the preamplifier volume and balance hanaset functions will be disabled and their indicators will turn off This will be flagged by the volume or balance indicators flashing if either handset function is operated 25 3 Handset Volume and Balance Control The remote handset volume and balance keys provide some alternative control characteristics A quick press and release of a key will adjust by a preset nudge A quick press and release of a key followed by press and hold will cause continual slow adjustment Simple press and hold will cause continual fast adjustment Note The NAC 122x and Nait 5i do not incorporate any facility for
12. channel balance control Preamplifier and 25 4 Mute Mono and Mon Mute silences the output signal and can be selected by pressing the front panel mute button On preamplifiers equipped with separate source and record sections Mute can be selected independently for source and record Mute can also be selected from the handset Note The Nait 5i does not incorporate any front panel mute facility Some preamplifiers include a mon mono function that sums the left and right channels Mono can be selected by pressing the front panel mon NAC 552 mono button On preamplifiers equipped with separate source and record sections mono can be selected independently for source and record Mono can also be selected from the handset Note The NAC 202 NAC 122x Supernait and Nait 5i do not incorporate any mono facility On preamplifiers that do not incorporate separate source and record sections a mon tape monitor facility is provided Pressing the mon button routes the tape input signal to the preamplifier output while leaving the input selection routed to the tape output Tape monitor can also be selected from the handset Note The Nait 5i does not incorporate any front panel tape monitor facility 25 5 Display The preamplifier front panel button illumination can be switched off by pressing the remote handset in preamplifier mode disp function Any subsequent handset or front panel operation will temporarily restore the dis
13. depending on where you live and the earthing arrangements in your home you may experience radio frequency interference Controls on broadcasting in some territories allow very high levels of radio frequency radiation and both the choice and exact siting of equipment may be critical Susceptibility to radio frequency interference is related to the wide internal bandwidth necessary for high sound quality A radio frequency filter kit is available for some Naim equipment but sound quality will be progressively compromised as more elements of the kit are fitted In situations of extreme radio interference Naim equipment may be unsuitable 3 5 Lightning Precautions Your Naim hi fi system can be damaged by lightning and should be turned off and disconnected from the mains when there is risk of lightning strike For complete protection all mains plugs and any aerial cables should be disconnected when not in use 3 6 Problems Consumer protection varies from country to country In most territories a retailer must be prepared to take back any equipment he has sold if it cannot be made to work satisfactorily A problem may be due to a fault in the system or its installation so it is essential to make full use of your dealer s diagnostic skills Please contact your local distributor or Naim Audio directly if any difficulties cannot be resolved Some Naim equipment is made in special versions for different territories and this makes it impracti
14. for both channels The tape output always carries the selected input signal No record monitor function is available source selection NAIT 5i Integrated Amplifier tunerinput RCA Phono tuner input DIN WARNING CD input DIN power left right CD input RCA speaker speaker Phono and fuse Note The Nait 5i features various technologies to reduce microphonic effects Some movement of the board and Inputs sockets when connecting and disconnecting cables is Shi nc normal ch2 nc Ve 24 NAIT 5i Specification Input Sensitivities 225mV 20kQ Overload Margins 35dB all inputs all audio frequencies Tape Output Level 225mvV 1000 Power Output Continuous 50 Watts per channel into 8 Ohms Quiescent Consumption 10VA Dimensions H x W x D 70 x 432 x 301mm Weight 6 4kg Mains Supply 100 120V or 220 240V 50 60Hz E21 E22 Preamplifier and Integrated Amplifier Operation Many operational and control features of Naim preamplifiers and integrated amplifiers are common to all and are based on a similar user interface This section of the manual describes those features and the user interface drawing attention to differences between products where they occur Table 25 10 sets out some variations in user interface between products Front panel controls are duplicated on the remote control handset which may also provide some extra functions See Sections 26 and 27 for more informa
15. negative of the whole system should be connected to the mains earth ground in one place 40 2 Protection Notes If the amplifier s external case reaches 70 C due to prolonged running at high power the mains supply will be interrupted and the illuminated logo will switch off until the amplifier has cooled down This may take up to thirty minutes 41 NAP 200 Connections 41 1 NAP 200 Rear mains input left and fuse speaker Power Output 70 Watts per channel 8Q 300 VA Transient Quiescent Consumption 11VA Voltage Gain 29qB Input Impedance 18kQ Frequency Response 30B 2Hz and 65kHz Power Supply Output 24V 0 3A Dimensions H x W x D 87 x 432 x 314mm Weight 11 6kg Mains Supply 100 120V or 220 240V 50 60Hz OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED 40 3 Loudspeaker Cable and Connectors Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 200 Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety regulations these should always be used DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED TO CONNECT THE LOUDSPEAKERS Ensure when connecting speakers that they are in phase That is the positive a
16. on the handset until the record select indicators are restored and the volume indicator stops flashing Table 4 3 illustrates the NAC 552 default input assignment 4 3 Socket Types and Assignment Defaults Input Socket Socket Source Button Number Features Assignment Default 1 DIN input Not assigned 2 DIN input CD 3 DIN input TUNER 4 DIN input output unity gain capable TAPE 5 DIN input output unity gain capable AV 6 DIN input output AUX 1 7 DIN input power output for phono stage AUX 2 8 RCA Phono pair Not assigned 9 RCA Phono pair Not assigned 5 NAC 552 Controls and Connections 5 1 NAC 552 Front source bank OO QOOOO0O00 OO QOOOOO0O balance volume source and record selection n7 RC5in NAC 552PS JO READ THE MANUAL BEFORE Foneros love MDA Poo os ch 1 L ch 1 L ch 2 R ch 2 R NAC 552 Preamplifier 5 3 NAC 552 Connected to NAC 552PS mains input and fuse Note For best performance the Burndy and 5 pin DIN cables should be run as close together as possible ej NAC 552PS C PLEASE READ THE MANUAL BEFORE USE 6 NAC 552 NAC 552PS Specification Input Sensitivities Overload Margins Main Output Level Tape Output Level Auxiliary Power Outputs Dimensions H x W x D Weight Mains Supply NAC 552PS 75MV 47KQ 40qB all inputs all audio frequencies 0 775V lt 50Q 75mvV 600Q For Naim phono stage Both 8
17. retrospectively Contact your local representative or Naim Audio directly for further information Note The NAC 122x features various technologies to reduce microphonic effects Some movement of the board and sockets when connecting and disconnecting cables is normal 17 3 NAC 122x Connected to Flatcap 2x Power Supply ATTENTION WARNING k k PLEASE READ THE MANUAL DEFORE US E AW power mains input to stereo power to mono or dual switch and fuse amplifiers mono power Headline or amplifiers phono stage Additional AAP A interconnects 18 NAC 122x Specification required Input Sensitivities 75MV 47kQ Overload Margins 35dB all inputs all audio frequencies Main Output Level 0 775V lt 500Q Tape Output Level 75mV 6000 Interconnect Cables 4 to 4 pin DIN 240 5 to 5 pin DIN Auxiliary Power Outputs For Naim phono stage Dimensions H x W x D 70 x 432 x 301mm Weight 3 9kg cable direction marker SUPERNAIT Integrated Amplifier 19 SUPERNAIT Introduction and Installation The Supernait should be installed on a dedicated equipment stand intended for the purpose Do not stand it directly on top of another item of equipment Care should be taken to ensure that it is level The amplifier should be installed in its final location before connecting cables or switching on Ensure that the volume is turned down before switching on A variety of power supply upgrade alternativ
18. signal The NAC 122x provides an analogue subwoofer output via to be routed to the preamplifier outputs and the power a pair of RCA Phono sockets amplifier Note The subwoofer output is a duplicate of the main The NAC 122x has six DIN input sockets and two alternative preamplifier output pairs of RCA Phono sockets The RCA Phono sockets are permanently connected to the CD and AUX 2 inputs in parallel with their DIN sockets RCA Phono and DIN sockets for the same input should not be connected simultaneously 17 NAC 122x Controls and Connections 17 1 NAC 122x Front 0 lali volume mon mute source selection E13 E14 NAC 122x Preamplifier signal ground to power amplifier with internal power supply power supply upgrade link plug fitted RCS in RCS out subwoofer RCA Phono out aux 2 RCA Phono in 6 AUX 2in amp power out TOPE in out in out in in in out 2in Phono in interface Input 6 Note The NAC 122x AUX 2 input is provided with two sockets The right hand socket fitted on delivery with i ac dhi out ie ive a blanking cover is intended for use with a Stageline ch2 nc ch2 ch2 ch2 chl or Prefix Phono stage and incorporates an appropriate out DC power supply The two sockets must not be used ve ve ve simultaneously Note The RS232 comms interface is an optional upgrade It can be specified at time of order or fitted
19. surface they are to be placed on can support the full weight 31 1 General Connections Notes 31 3 Loudspeaker Cable and Connectors The negative input and output connections for each channel are common The mains earth ground should always be connected regardless of what other equipment is used in conjunction with Naim power amplifiers This only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of the whole system should be connected to the mains earth ground in one place 31 2 Protection Notes In the NAP 300 the fan speed is increased in response to an increase in amplifier dissipation If the amplifier reaches 70 C due to prolonged running at high level or to airflow being blocked the output will be interrupted and the fan will run at full soeed until it has cooled down This may take a few minutes It is not necessary to switch the amplifier off but it may be advisable to mute the preamplifier or turn the volume down to avoid surprises when it comes back on OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 300 Custom Naim Audio loudspeaker connectors are supplied to make the connectio
20. 7 x 432 x 314mm NAC 552 12 9kg NAC 552PS 13 9kg 100 120V or 220 240V 50 60Hz additional signal output to mono or dual mono to stereo power power amplifiers amplifiers cable Interconnect Cables direction NAC 552 Bundy marker 240 5 to 5 pin DIN E5 E6 NAC 252 Preamplifier 7 NAC 252 Introduction and Installation The NAC 252 preamplifier does not incorporate an internal power supply and can be used only in conjunction with the Supercap power supply Diagram 8 3 illustrates connection of the NAC 252 to its power supply The preamplifier and power supply should be installed on a dedicated equipment A stand intended for the purpose Do not stand either directly on top of another item of Operational features equipment Care should be taken to ensure that the preamplifier is level common to all preamplifiers and The preamplifier and power supply should be installed in their final locations before connecting cables or switching on Ensure that power amplifiers are switched off and the integrated amplifiers are described in preamplifier volume is turned down before the power supply is switched on The power Section 25 button is located on the power supply front panel The power supply is heavy and care should be taken when lifting or moving it Make sure that the surface on which it is to be placed can support its weight The following Section 7 paragraphs describe installation f
21. CD button Assigning of each record button follows the corresponding source button Input assignment setup is accessed through the NAC 552 program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode Program mode is indicated by a flashing indicator on the front panel volume control and the record selection indicators extinguishing Note If no function is operated within five minutes of entering program mode the NAC 552 will return to normal mode automatically Any of the six source buttons on the front panel can be assigned to any of the nine stereo inputs seven DIN sockets and two RCA Phono socket pairs on the rear panel In program mode as a source input is selected a rear panel indicator will illuminate to designate the socket to which it is assigned To change the input socket assigned to a source button select the source button and use the front panel record mute and mono buttons to scroll along the input sockets If the input socket selected is already assigned to a source button the indicator above the socket will flash repeatedly It is possible to assign one input socket to more than one source button but NOT to assign multiple input sockets to one source button The remote handset record mute and mono functions can also be used to set up input assignment E3 E4 NAC 552 Preamplifier To exit from program mode press and hold the prog key
22. LD BE REDUCED NAP 500 Power Amplifier 29 NAP 500 Connections 29 1 NAP 500 Connected to NAP 500PS signal input ch2 R NAP SOOPS WAR g 5 N 5 N ATTENTION 9 O za O a O O PLEASE READ THE MANUAL BEFORE USE mains input and fuse Input Ch1 Input Ch2 ie ee 30 NAP 500 NAP 500PS Specification Power Output 140 Watts per channel 8Q 700 VA Transient cable Quiescent Consumption 60VA o NAP 500PS Burndy Voltage Gain 290B Input Impedance 18kQ Frequency Response 30B 1 5Hz and 100kHz Dimensions H x W x D NAP 500 160 x 432 x 375mm NAP 500PS 87 x 432 x 314mm Weights NAP 500 25kg NAP 500PS 15 4kg Mains Supply NAP 500PS 100 120V or 220 240V 50 60Hz E27 E28 NAP 300 Power Amplifier 31 Installation and Operation 31 Installation and Operation The NAP 300 and NAP 300PS should be installed on a dedicated equipment stand intended for the purpose and should be in their final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAP 300 The NAP 300 power button is located on the front panel of the NAP 300PS Power Supply Care should be taken when siting the NAP 300 to ensure that the underside fan inlet and rear outlet are not obstructed The NAP 300 and NAP 300PS are heavy and care should be taken when lifting or moving them Make sure that the
23. The NAP 250 power button is located on the front panel The NAP 250 is heavy and care should be taken when lifting or moving it Make sure that the surface it is to be placed on can support the full weight 34 1 ej enera l Cc onne c i ons N otes OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE common The mains earth should always be connected THE VOLUME SHOULD BE REDUCED regardless of what other equipment is used This only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of the whole system should be connected to the mains earth The negative input and output connections are alll Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 250 Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with 34 2 Protection Notes current European safety regulations these should always be used ground in one place If the amplifier s external case reaches 70 C due to prolonged running at high power the mains supply will be interrupted and the illuminated logo will switch off until the amplifier has cooled down This may take up to thirty DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED
24. ace the end cover Remove the batteries if the R com is to be packed and shipped 26 1 Using R com R com keys primarily provide control of the functions most often used on CD players preamplifiers integrated amplifiers and tuners In order to extend battery life R com will enter a sleep mode when unused It will wake on being touched R com has three operational modes CD Player mode Preamplifier Integrated amplifier mode and Tuner mode Its default mode is CD player When awake in CD Player mode all R com keys will illuminate green To switch the R com into Preamplifier Integrated amplifier mode or Tuner mode press the pre or tun keys respectively The pre or tun key will then illuminate white To switch R com back into CD player mode either press the pre or tun key again In default mode the R com keys have the following functions disp Switches the CD player front panel indicators off and on open Opens the door on the CD555 stop Stops CD replay play Begins CD replay prev Selects the previous track or index point next Selects the next track or index point vol Increases the preamplifier integrated amplifier volume vol Decreases the preamplifier integrated amplifier volume mute Reduces the volume to zero A second press restores the volume pause Pauses CD replay A second press restores play In Preamplifier Integrated amplifier mode press pre key the following keys will
25. and intended for the purpose Do not stand either directly on top of another item of preemia and equipment Care should be taken to ensure that the preamplifier is level hee Sele hee are described in The preamplifier and any power supply should be installed in their final locations before Section 25 connecting cables or switching on Ensure that the preamplifier volume is turned down before switching on The following Section 10 paragraphs describe installation features and functions specific to the NAC 282 Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 10 1 Source Inputs and Record Outputs Input assignment setup is accessed through the NAC 282 program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode Program mode is indicated by a flashing indicator on the front panel volume control and the record selection indicators extinguishing The input selection buttons arranged along the upper bank select the source signal to be routed to the power amplifier and the loudspeakers Below them in the lower bank are a corresponding array of buttons which select the signal to be routed to the preamplifier s record outputs Note If no function is operated within five minutes of entering program mode the NAC 282 will return fo normal mode automatically These separate source and record sections enable one sou
26. cable to arrange international guarantees Please establish the local guarantee arrangements with your retailer Contact Naim Audio directly for help and advice if necessary A thump may be heard from the loudspeakers as power 3 7 Service and U pd ates amplifiers are switched on This is normal will not cause any loudspeaker damage and does not point to any fault or problem A mild pop may also be heard shortly after equipment is switched off Naim equipment takes a considerable time to run in before it performs at its best The duration varies but under some conditions the sound may continue to improve for over a month Better and more consistent performance will be achieved if the system is left switched on for long periods It is worth remembering however that equipment left connected to the mains can be damaged by lightning It is essential that repairs and updates are only carried out by an authorised Naim retailer or at the factory by Naim itself Many components are custom made tested or matched and appropriate replacements are often unobtainable from other sources Direct contact to Naim for service or update information should be made initially through Customer Services Tel 44 0 1722 426600 Email info naim uk com Please quote the product serial number found on its rear panel in all correspondence 4 NAC 552 Introduction and Installation NAC 552 Preamplifier 4 NAC 552 Introduction and Installation
27. ce Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAPV 175 Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety regulations these should always Once installed the NAP V175 is intended to remain Be used permanently powered up via its rear panel switch If the internal heatsink reaches 70 C due to prolonged running DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH at very high dissipation the mains supply will be interrupted DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED and the illuminated logo will go off until the amplifier has TO CONNECT THE LOUDSPEAKERS cooled down This may take up to thirty minutes Ensure when connecting speakers that they are in phase That is the positive and negative connection 47 NAPV 175 Connections orientation at both the speaker and amplifier ends of the cable is the same for all channels 47 1 NAPV 175 Rear WARNING THIS APPARAT JS MUST BE EARTHED power mains left centre right signal signal input switch input and speaker speaker speaker input ch1 L amp fuse centre ch2 R 48 NAPV 175 Specification Input Power Output 50 Watts per channel 8Q Input Centre Ch1 amp Ch2 Channels Three Quiescent Consumption 10VA ne signa ch2 chl Voltage Gain 29dB ve nc ve nc 18kQ Input Impedance Frequency Response 3dB
28. ch2 chl ve 24V 0 25A E33 NAPV 175 Power Amplifier 46 Installation and Operation The NAPV 175 is a three channel power amplifier intended for use in audio visual systems The three channels provide power to drive a centre channel speaker and a pair of either main front or surround channel speakers Audio line level input is via two 4 pin DIN sockets one for the centre channel and one for the main or surround pair The NAPV 175 should be installed on an equipment rack intended for the purpose and in its final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAPV 175 The power button is located on the rear panel The NAPV 175 is heavy and care should be taken when lifting or moving it Make sure that the surface it is to be placed on can support the full weight 46 1 General Connections Notes OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED The mains earth grounds only the case and the electrostatic screen within the transformer and is not connected to the signal negative The mains earth must always be connected to ground regardless of any other equipment used In order to avoid hum loops the signal negative of the whole system should be connected to the mains earth in one pla
29. change function disp Switches the preamplifier integrated amplifier front panel button indicators amp knob indicators off and on prev Selects the previous source input next Selects the next source input Note Preamplifier or integrated amplifier program mode can be selected from the R com by pressing and holding the pre key Program mode functions can then be accessed from the equipment front panel In Tuner mode press tun key the following keys will change function disp Switches the tuner front panel button indicators off and on prev Selects the tuner down function next Selects the tuner up function 26 2 R com Keys NARCOM 4 Remote Handset The NARCOM 4 remote handset is supplied with the NAC 552 NAC 252 NAC 282 NAC 202 NAC 122x Supernait and Nait 5i It is a multi functional remote control handset designed to be used with Naim Audio CD players integrated amplifiers preamplifiers preset tuners and subwoofers To fit batteries remove the battery cover and insert the batteries into the body taking care with their orientation Replace the battery cover 27 1 Using NARCOM 27 2 NARCOM 4 Keys Operation of the NARCOM 4 handset is based around three types of keys System Component Keys Global Keys and Soft Keys Disp Key Soft System Component Keys keys switch the operation of the Soft Keys into modes appropriate to each system component CD player preamplifier etc
30. connected to the mains earth ground in one place DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED TO CONNECT THE LOUDSPEAKERS Note Each channel of the NAP 500 is a bridged amplifier so none of the speaker outlet sockets or Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels is at earth potential Avoid connecting mains powered equipment such as electrostatic speakers sub woofers and headphone energisers that do not have a floating earth No plug which is connected directly or indirectly to earth potential should be attached fo any speaker outlet or 28 2 Protection Notes In the NAP 500 the fan speed is increased in response to an increase in amplifier dissipation If the amplifier reaches 70 C due to prolonged running at high level or to airflow being blocked the output will be interrupted and the fan will run at full soeed until it has cooled down This may take a few minutes It is not necessary to switch the amplifier off but it may be advisable to mute the preamplifier or turn the volume down to avoid surprises when it comes back on OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOU
31. d inputs selected for auto switching are indicated stop pressing the button The remote handset can also be used to engage Automatic Input Switching See Table 25 10 Automatic Input Switching only becomes operational on exit from program mode by pressing and holding the handset prog key Note In a few cases some further equipment configuration may be required for auto switching to operate correctly Please contact your retailer or local distributor for advice 25 2 AV Integration Unity Gain Unity Gain enables an audio visual processor to be integrated such that its volume control takes over command of signals connected to selected preamplifier inputs On the NAC 552 Unity Gain may be selected on DIN input sockets that carry both inputs and outputs the corresponding input buttons may depend on the input assignment On all other preamplifiers it may be selected on only the av input program mode by pressing and holding the handset prog key with the handset in preamplifier mode The front panel source mute button NAC 202 and NAC 122x mute button Nait 5i av input button will illuminate if Unity Gain is selected If it is not enabled it can be switched on by pressing the same button twice With Unity Gain enabled on the NAC 552 pressing the source mute button again will reveal the inputs selected by their indicators illuminating for a short time Repeated operation of the button will sequentially select each combination of the
32. ds of the cable is the same for both channels PLEASE READ THE MANUAL BEFORE USE mains input and fuse 39 NAPV 145 Specification Power Output 80 Watts 80 400 VA Transient Quiescent Consumption 15VA Voltage Gain 29dB Input Impedance 18kQ Frequency Response 3dB 2Hz and 65kHz Dimensions H x W x D 87 x 432 x 314mm Weight 15 8kg Mains Supply 100 120V or 220 240V 50 60Hz speaker signal input E31 E32 NAP 200 Power Amplifier The NAP 200 should be installed on a dedicated equipment stand intended for the purpose and should be in its final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAP 200 The NAP 200 power button is located on the front panel The NAP 200 can provide power for an appropriate Naim Audio preamplifier The power supply output is carried on the DIN input socket The NAP 200 is heavy and care should be taken when lifting or moving it Make sure that the surface it is to be placed on can support its full weight 40 1 General Connections Notes The negative input and output connections are alll common The mains earth should always be connected regardless of what other equipment is used This only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal
33. e preamplifier and alternative or additional power amplifier options are possible for the Supernait Diagrams illustrating the connection of some of these are shown in Section 20 The following Section 19 paragraphs describe installation features and functions specific to the Supernait Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 o1 Co Lio ale LE CXe LUCH common to all preamplifiers and integrated amplifiers are described in Section 25 AE LEE E i ae E Ee Gai 19 1 2 Digital Inputs The input selection buttons arranged along the upper bank select the source signal to be routed to the power amplifier and the loudspeakers The six buttons are labelled cd tuner tape av aux1 and aux2 Each input button may be assigned to analogue inputs via DIN RCA Phono or 3 5mm jack sockets or to digital inputs via RCA Phono coaxial Toslink or mini toslink optical sockets The default settings and the assignment setup procedure are detailed in Sections 19 2 and 19 3 respectively 19 1 1 Analogue Inputs The first four selection buttons cd tuner tape and av can each be assigned to both a DIN input socket and a pair of RCA Phono input sockets on the rear panel The DIN and Phono sockets for each input are internally wired in parallel and should not be connected simultaneously The aux and aux2 selection buttons can each be assigned to a pair of RCA Phono
34. e whole system should be connected to the mains earth ground in one place source and record selection source bank OQOOOOOO OOOOOOO WARNIN G 00 NOT REPLACE SUPPLIED LOI OSPEAKER L PLUGS WITH INDIVIDUAL amm PI UGS mains input interface speaker speaker and fuse power signal ground foro Ko lao BETE tape and av F chl chl nc chl out ve ve ch2 ne ch2 ch2 ch2 chl out ve ve ve pre amp out for bi amp ch2 ch ve nc T combined headphone analogue and output digital input analogue digital Phono RCA inputs ja inputs 12 34 bamp sub tape aux av tape tuner cd power amp in and preamp out Link plug fitted tape tuner cdin in amp amp out in amp in power out out Note The RS232 interface is an optional upgrade If can be specified at time of order or fitted retrospectively Contact your local representative or Naim Audio directly for further information Note The link plug should be removed only if a power supply upgrade is to be used or an alternative preamplifier is to use the Supernait power amplifier section It should remain fitted in all other circumstances E17 SUPERNAIT Integrated Amplifier 20 3 SUPERNAIT Connected to Hi Cap Power Supply I direction marker Interconnect Cables 4 to 4 pin DIN 240 5 to 5 pin DIN mains input and
35. eatures and functions specific to the NAC 252 Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 7 1 Source Inputs and Record Outputs Input assignment setup is accessed through the NAC 252 program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode Program mode is indicated by a flashing indicator on the front panel volume control and the record selection indicators extinguishing The input selection buttons arranged along the upper bank select the source signal to be routed to the power amplifier and the loudspeakers Below them in the lower bank are a corresponding array of buttons which select the signal to be routed to the preamplifier s record outputs Note If no function is operated within five minutes of entering program mode the NAC 252 will return to normal mode automatically These separate source and record sections enable one source a CD player for example to be listened to whilst the output from another say the tuner is simultaneously selected for recording Once in program mode press and hold the remote handset 1 key to select or de select the RCA Phono socket input for CD and the remote handset 6 key to select or de select the RCA Phono socket input for AUX 2 The corresponding front panel input buttons can similarly be used to select or de select the RCA Phono socket inputs The appr
36. ected to the Supernait power amp in socket a fault will initially be indicated by the source mute button flashing To clear the fault press and hold the flashing source mute button This will un mute the power amplifier and turn off the display and volume and balance indicators The Supernait provides an unfiltered analogue stereo subwoofer output via a pair of RCA Phono sockets Note The subwoofer output is a duplicate of the preamplifier output No low pass filtering is applied 19 8 Power Supply Upgrades The Supernait preamplifier section can be upgraded through the connection of an external Flatcap 2x Hi Cap or Supercap power supply Diagrams illustrating power supply upgrades are shown in the following section The SUPERNAIT Integrated Amplifier Supernait and external power supply must be switched off when connections are made Switch on the external power supply and then the Supernait when all connections are complete 19 9 General Connections Notes The Supernait negative input and output connections for each channel are common The mains earth ground 20 SUPERNAIT Controls and Connections 20 1 SUPERNAIT Front should always be connected regardless of what other equipment is used in conjunction with the amplifier The mains earth only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of th
37. er cable although we recommend that Naim loudspeaker cable is used Naim loudspeaker cable is directional and should be oriented so that the printed arrow points towards the speakers The Naim loudspeaker connectors supplied are designed to comply with European safety legislation and must be used Contact your local retailer or distributor for further advice on loudspeaker cables and connectors 2 Mains Power Where fused plugs are used 13 amp fuses should be fitted Fuses of a lower rating will fail after a period of use Do not wire voltage dependent resistors or noise suppressors into mains plugs They degrade the mains supply and the sound 2 1 Mains Plug Wiring In some territories a mains plug may need to be fitted to the supplied mains lead As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals in the plug proceed as follows The wire coloured GREEN AND YELLOW must be connected to the terminal in the plug marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN and YELLOW The wire coloured BLUE must be connected to the terminal in the plug marked with the letter N or coloured BLACK The wire coloured BROWN must be connected to the terminal in the plug marked with the letter L or coloured RED 2 2 Equipment Fuses Mains powered Naim Audio equipment is fitted with a mains fuse on the rear panel adjacent to the mains input
38. ers Note Alternative upgrade schemes and product combinations may be feasible Contact your local representative or Naim Audio directly for further information 12 NAC 282 Specification Input Sensitivities Overload Margins Main Output Level Tape Output Level Auxiliary Power Outputs Dimensions H x W x D Weight 75MV 47kQ 40qB all inputs all audio frequencies 0 775V lt 50Q 75mV 600Q For Naim phono stage 87 x 432 x 314mm 7 0kg CE cable direction marker Interconnect Cables 240 5 to 5 pin DIN NAC 202 Preamplifier 13 NAC 202 Introduction and Installation The NAC 202 preamplifier does not incorporate an internal power supply but must be used in conjunction with either a Naim power amplifier incorporating a preamplifier power output or with an appropriate Naim power supply A separate NAPSC supply that provides power to the display and control circuits is also available Diagram 14 3 illustrates the NAC 202 connected to a Hi Cap power supply Operational features common to all preamplifiers and The preamplifier and any power supply should be installed on a dedicated equipment stand intended for the purpose Do not stand either directly on top of another item of equipment Care should be taken to ensure that the preamplifier is level integrated amplifiers are described in Section 25 The preamplifier and any power supply should be installed in their final location
39. faults NAC 552 hold pre N A N A N A handset key R com hold prog pre gt mon pre gt mute hold disp handset key s NARCOM 4 source mono source mute front pane NAC 252 hold prog pre gt mon pre gt mute hold disp handset key s NARCOM 4 source mon source mute front panel button NAC 282 hold prog pre gt mon pre gt mute hold disp handset key s NARCOM 4 source mon source mute front panel button NAC 202 hold prog pre gt mon pre gt mute hold disp handset key s NARCOM 4 mon mute front panel button NAC 122x hold prog pre gt mon pre gt mute hold disp handset key s NARCOM 4 mon mute front panel button Supernait hold prog rec gt mute pre gt mute hold disp handset key s NARCOM 4 record mute source mute front panel button Nait 5i hold prog pre gt 3 pre gt 4 hold disp handset key s NARCOM 4 tape av front panel button Note The handset must be in preamplifier mode to select program mode or to restore defaults Note The symbol means one key followed by another E23 E24 R com Remote Handset 26 R com Remote Handset The R com remote handset is supplied with the NAC 552 and CD555 and can be purchased as an accessory It offers quick and intuitive control of the most often used functions of CD players preamplifiers integrated amplifiers and tuners To fit batteries remove the bottom end cover using the tool provided and insert the batteries into the body taking care with their orientation Repl
40. fuse 20 4 SUPERNAIT Connected to NAP 200 Power Amplifier power mains input and fuse awa ian ATTENTI ON WARNING mains input and fuse I cable direction marker Interconnect Cables 4 to 4 pin DIN E18 SUPERNAITIfe SUPERNAIT Integrated Amplifier 20 5 SUPERNAIT Connected to Hi Cap Power Supply and NAP 200 Power Amplifier IOIO marker cable direction Interconnect Cables 4 to 4 pin DIN 240 5 to 5 pin DIN OO WARNING 21 SUPERNAIT Specification Input Sensitivities Overload Margins Preamp Output Level Tape Output Level Power Output Auxiliary Power Outputs Quiescent Consumption Dimensions H x W x D Weight Mains Supply 75mV 47kQO 40qB all inputs all audio frequencies 0 775V lt 50Q 75mvV 600Q Continuous 80 Watts per channel into 8 Ohms For Naim phono stage 10VA 87 x 432 x 314mm 12 8kg 100 120V or 220 240V 50 60Hz E19 E20 NAIT 5i Integrated Amplifier 22 NAIT 5i Introduction and Installation 22 NAIT 5i Introduction and Installation The Nait 5i should be installed on a dedicated equipment stand intended for the purpose Do not stand it directly on top of another item of equipment Care should be taken to ensure that it is level The amplifier should be installed in its final location before connecting cables or switching on Ensure that the volume is turned dow
41. igital Input Selection cd assigns digital 1 coaxial tuner assigns digital 2 optical tape assigns digital 3 coaxial av assigns digital 4 optical As an example to assign the tuner input selection button to digital input 4 proceed as follows i Enter program mode ii Press the tuner input selection button iii Press the av record selection button which will illuminate iv Exit program mode To return an input selection button to its default analogue input repeat the assignment procedure For example to return the tuner input selection button to its analogue input socket i Enter program mode ii Press the tuner input selection button iii Press the av illuminated record selection button which will extinguish iv Exit program mode 19 4 Record Outputs The selection buttons arranged along the lower bank select the source signal to be routed to the Supernait s record outputs These separate source and record sections enable one source a CD player for example to be listened to whilst the output from another say the tuner is simultaneously selected for recording Note Simultaneous and independent listen and record is not possible with two digital sources 19 3 Digital Input Assignment 19 5 Speaker Outputs A stereo set of speaker connection sockets is provided on the rear panel Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to com
42. input sockets and a DIN input socket on the rear panel respectively Note The aux2 DIN input socket carries a power supply output voltage appropriate for a Naim phono preamplifier The Supernait additionally provides four S PDIF digital input sockets 2 RCA Phono coaxial and 2 Toslink optical on the rear panel Any input selection button can be assigned to one of these sockets Note The digital inputs support stereo PCM audio only If the digital signal contains anything other than stereo PCM audio Dolby or DTS encoded programme material for example all outputs will be muted 19 1 3 Front Panel Combined Input An auxiliary front panel input socket is also provided This socket is a 3 5mm analogue jack input combined with a digital mini Toslink optical socket The analogue input is wired internally in parallel with the rear panel aux input and the two must not be connected simultaneously The front panel input analogue or digital is automatically selected and the aux selection button automatically assigned to it whenever a plug is inserted in the socket Note The Supernait is able to differentiate a digital source from an analogue one at the front panel input if the digital source is working when the plug is inserted Input selection will revert to that previously selected when the front panel input plug is removed 19 2 Default Input Selection Button and Input Socket Assignment Input Selectio
43. inputs all audio frequencies Main Output Level 0 775V lt 50Q Tape Output Level 75mV 6000 cable Auxiliary Power Outputs For Naim phono stage i direction 4 to 4 pin DIN Dimensions H x W x D 87 x 432 x 314mm marker 240 5 to 5 pin DIN Weight 7 0kg E12 NAC 122x Preamplifier The NAC 122x preamplifier does not incorporate an internal power supply but must be used in conjunction with either a Naim power amplifier incorporating a preamplifier power output or with an appropriate Naim power supply Diagram 17 3 illustrates the NAC 122x connected to a Flatcap 2x power supply The preamplifier and any power supply should be installed on a dedicated equipment Operational features stand intended for the purpose Do not stand either directly on top of another item of e le all equipment Care should be taken to ensure that the preamplifier is level preamplifiers and integrated amplifiers are described in connecting cables or switching on Ensure that the preamplifier volume is turned down Section 25 before switching on The preamplifier and any power supply should be installed in their final locations before The following Section 16 paragraphs describe installation features and functions specific to the NAC 122x Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 16 1 Input Sockets 16 2 Subwoofer Output The input selection buttons select the source input
44. lation This equipment generates uses and can radiate radio frequency and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult your Naim retailer or an experienced radio TV technician for help Page E1 E1 E2 E3 E4 E5 E6 E6 E7 E8 E8 E10 E11 E11 E12 E13 E13 E14 E15 E17 E19 E20 E20 E21 E22 E24 E25 E26 E27 E27 E28 E29 E29 E30 E30 E30 E31 E31 E31 E32 E32 E32 E33 E33 E33 E34 E34 E34 E35 E35 E35 E36 Section OnN AO ORWD NNN NNDND ARAOUN ODAN WF GH PWDND O 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Connections Mains Power General Installation NAC 552 Introduction and Installation NAC 552 Controls and Connections NAC 552 Specification NAC 252 Introduction and Installation
45. n Input Socket Input Socket Button Assignment Type cd Analogue Input 1 DIN RCA Phono tuner Analogue Input 2 DIN RCA Phono tape Digital Input 1 RCA Phono Coax av Analogue Input 4 DIN RCA Phono aux1 Digital Input 2 Toslink Optical See Note aux2 Analogue Input 6 DIN with Naim phono stage power supply Note Any plug inserted into the front panel socket will automatically provoke selection of this input digital or analogue and will automatically assign it to the aux selection button E15 E16 S UPERNAIT Integrated Amplifier The default digital input socket assignment illustrated in Table 19 2 may be changed if desired Each selection button may be assigned to any one of the four rear panel digital input sockets Input assignment setup is accessed through the Supernait program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode Program mode is indicated by a flashing indicator on the front panel volume control Note If no function is operated within five minutes of entering program mode the Supernait will return to normal mode automatically Once in program mode to assign a digital input socket first press the required input selection button Then press one of the record selection buttons to assign the desired digital input The record selection buttons assign digital inputs as set out in the following table Record Select Button D
46. n and in order to comply with current European safety regulations these should always be used DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED TO CONNECT THE LOUDSPEAKERS Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels NAP 300 Power Amplifier 32 1 NAP 300 Connected to NAP 300PS input ch1 L speaker speaker PLEASE READ THE MANUAL BEFORE USE mains input and fuse Input Ch1 Input Ch2 direction marker I cable Interconnect Cables NAP 300PS Burndy m 33 NAP 300 NAP 300PS Specification Power Output Quiescent Consumption Voltage Gain Input Impedance Frequency Response Dimensions H x W x D Weights Mains Supply NAP 300PS 90 Watts per channel 80 500 VA Transient 27VA 29dB 18kQ 3d0B 2Hz and 70kHz Both 87 x 432 x 314mm NAP 300 10 7kg NAP 300PS 14 1kg 100 120V or 220 240V 50 60Hz E29 E30 NAP 250 Power Amplifier 34 Installation and Operation The NAP 250 should be installed on a dedicated equipment stand intended for the purpose and should be in its final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAP 250
47. n before switching on The following Section 22 paragraphs describe installation features and functions specific to the Nait 5i Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 The front panel input selector buttons select the source input signal to be routed to the power amplifier and the loudspeakers The four buttons are labelled cd tuner tape and av Each input button corresponds to a pair of rear panel RCA Phono input sockets The cd and tuner inputs are additionally provided with alternative DIN sockets These should be used in preference to the RCA Phono sockets if practical Do not connect both the DIN and RCA Phono sockets of one input simultaneously 23 NAIT 5i Controls and Connections 23 1 NAIT 5i Front Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 A stereo set of soeaker connection sockets is provided on the rear panel The sockets can accept standard 4mm plugs but to comply with European legislation the Naim connectors supplied should be used Naim Audio speaker cable will provide the best results however a wide range of speaker cable types can be used without risk of damage to the amplifier Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same
48. nd negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels WAR NING PLEASE READ THE MANUAL BEFORE USE right signal input speaker ch1 L amp ch2 R and preamp power supply Input Preamp Power Socket chl ch2 24V 0 34 NAP 150x Power Amplifier 43 Installation and Operation The NAP 150x should be installed on a dedicated equipment stand intended for the purpose and should be in its final location before connecting cables or switching on Switch on the source and preamplifier components with the volume turned down before switching on the NAP 150x The NAP 150x power button is located on the rear panel The NAP 150x can provide power for an appropriate Naim Audio preamplifier The power supply output is carried on the DIN input socket 43 1 General Connections Notes The negative input and output connections are all common The mains earth should always be connected regardless of what other equipment is used This only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of the whole system should be connected to the mains earth ground in one place 43 2 Protection Notes If the amplifier s external case reaches 70 C due to prolonged running at high power the mains supply will be interrupted and the illuminated logo will switch off u
49. ns are all common The mains earth should always be connected regardless of what other equipment is used This only grounds the case and the electrostatic screen within the transformer and is not connected to the signal negative In order to avoid hum loops the signal negative of the whole system should be connected to the mains earth ground in one place 37 2 Protection Notes If the amplifier s external case reaches 70 C due to prolonged running at high power the mains supply will be interrupted and the illuminated logo will switch off until the amplifier has cooled down This may take up to thirty minutes 38 NAPV 145 Connections 38 1 NAPV 145 Rear OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED 37 3 Loudspeaker Cable and Connectors Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAPV 145 Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety regulations these should always be used DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED TO CONNECT THE LOUDSPEAKERS Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier en
50. ntil the amplifier has cooled down This may take up to thirty minutes 44 NAP 150x Connections 44 1 NAP 150x Rear OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED 43 3 Loudspeaker Cable and Connectors Only Naim Audio speaker cable should be used to connect a loudspeaker to the output of the NAP 150x Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety regulations these should always be used DAMAGE TO THE AMPLIFIER MAY RESULT IF HIGH DEFINITION CABLE OR ANY OTHER SPECIAL CABLE IS USED TO CONNECT THE LOUDSPEAKERS Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels WARING power mains input left switch and fuse speaker 45 NAP 150x Specification Power Output 50 Watts per channel 80 250 VA Transient Quiescent Consumption 10VA Voltage Gain 29dB Input Impedance 18kQ Frequency Response 3dB 3Hz and 50kHz Power Supply Output 24V 0 25A Dimensions H x W x D 70 x 432 x 301mm Weight 7 5kg Mains Supply 100 120V or 220 240V 50 60Hz right signal input speaker ch1 L amp ch2 R and preamp power supply Input Preamp Power Socket
51. offer the finest performance possible avoiding compromise wherever practical This can lead to circumstances that may be unfamiliar The notes that follow contain advice specifically related to Naim equipment as well as more general warnings about the use of domestic audio products Please read them carefully 3 1 Siting The Equipment In order to reduce the risk of hum audible from the loudspeakers power supplies and power amplifiers should be located a reasonable distance away from other equipment The maximum separation distance for connected equipment is that allowed by the standard interconnect lead Some Naim equipment is extremely heavy Check the weight of the equipment prior to lifting and if necessary use more than one person so that it can be moved safely Ensure that your equipment rack or table can easily support the weight and is stable Some speakers and stands are intended to be used with floor spikes fitted Care should be taken when siting and moving them to avoid personal injury or damage to cables and surfaces Floor protectors are available from your local dealer or distributor to protect non carpeted floors Source components and power supplies should be switched on before the power amplifiers Always switch amplifiers off and wait a minute before connecting or disconnecting any leads Always use the power switch on the product rather than a mains outlet switch 3 4 Radio Interference In some circumstances
52. opriate input button indicator will flash three times on selection of the RCA Phono option and once on selection of the DIN option Note It is possible to lock the record controls and prevent accidental de selection during recording Record lock is switched on or off by pressing the source mono button four times within six seconds The NAC 252 has six DIN input sockets and two alternative pairs of RCA Phono sockets The RCA Phono sockets can be assigned individually to the CD and AUX 2 input buttons To exit from program mode press and hold the prog key on in place of the DIN sockets the handset until the record select indicators are restored and the volume indicator stops flashing 8 NAC 252 Controls and Connections 8 1 NAC 252 Front source xa OOOOOOOO MOO OOOOOO source and record selection volume balance NAC 252 Preamplifier 8 2 NAC 252 Rear n5 jin supercap supercap RCS in aux 1 aux 2 PLEASE READ THE MANUAL BEFO inl Jin2 ina tin4 sgnal lin 6 alternative cd RCA Phono aux 2 RCA Phono RS232 cd tuner tape av ground N Chae interface Input 6 Note The NAC 252 AUX 2 input is provided with two sockets The lower socket fitted on delivery with a ve blanking cover is intended for use with a Naim Audio RCA tve chl Phono stage and incorporates an appropriate DC power ch2 supply The two sockets must not be used simultaneously ve Note The RS232 comm
53. play A second operation of the disp function will restore the display Integrated Amplifier Operation After switch on via the power amplifier or power supply power button the preamplifier will remain muted for 30 seconds while control systems and circuits stabilise On preamplifiers equipped with separate source and record sections only the source side will un mute automatically leaving the record side muted 25 7 Remote Control The remote handset supplied with the preamplifier duplicates all configuration and control functions See Sections 26 and 27 for more information 25 8 Defaults To restore all programmable settings to the factory defaults press and hold the remote handset disp key while the preamplifier is in program mode The preamplifier will exit from program mode following this operation 25 9 Fault Conditions Some preamplifiers will indicate problems by flashing front panel button indicators On the NAC 252 NAC 282 NAC 202 and Supernait a flashing source mute button indicates that a power supply or link plug is incorrectly installed On the Supernait a flashing record mute button indicates an over current condition On the Nait 5i a flashing cd button indicates an over temperature condition and a flashing tuner button indicates an over current condition 25 10 Interface Function Buttons and Keys Product Program Auto Input AV Integration Restore Mode Switching Unity Gain De
54. ply with current European safety regulations these should always be used Naim Audio speaker cable will provide the best results however a wide range of speaker cable types can be used without risk of damage to the amplifier Ensure when connecting speakers that they are in phase That is the positive and negative connection orientation at both the speaker and amplifier ends of the cable is the same for both channels 19 6 Headphone Output A 3 5mm headphone socket is provided on the front panel Insertion of a headphone plug will automatically switch on the headphone amplifier and mute the speaker outputs unless the Supernait is set up not to mute To prevent or re enable automatic speaker muting enter program mode and press the record aux2 selection button 19 7 Auxiliary Inputs and Outputs A bi amp out preamplifier output DIN socket is provided on the rear panel to enable an external upgrade power amplifier or second bi amp power amplifier to be used Note Bi amp out is the preferred socket for all external power amplifier connections Also provided are separate pre amp out and power amp in sockets In normal use these sockets are connected by an external link plug The link plug should be removed only if a power supply upgrade is to be used or an alternative preamplifier is to use the Supernait power amplifier section Diagrams 20 3 to 20 5 illustrate use of these sockets When an external preamplifier is conn
55. rce a CD player for example to be listened to whilst the output from another say the tuner is simultaneously selected for recording Once in program mode press and hold the remote handset 1 key to select or de select the RCA Phono socket input for CD and the remote handset 6 key to select or de select the RCA Phono socket input for AUX 2 The corresponding front panel input buttons can similarly be Note It is possible to lock the record controls and prevent accidental de selection during recording Record lock is switched on or off by depressing the source mono button four times within six seconds used to select or de select the RCA Phono socket inputs 10 2 Input Socket Assignment The appropriate input button indicator will flash three times on selection of the RCA Phono option and once on The NAC 282 has six DIN input kets and t It ti e as six input sockets and two alternative selection of the DIN option pairs of RCA Phono sockets The RCA Phono sockets can be assigned individually to the CD and AUX 2 input buttons To exit from program mode press and hold the prog key on in place of the DIN sockets the handset until the record select indicators are restored and the volume indicator stops flashing 11 NAC 282 Controls and Connections 11 1 NAC 282 Front source lt OO 000000 HOO OOOOOO source and record selection volume balance NAC 282 Preamplifier 11 2 NAC 282 Rear power supply ou
56. reamplifiers and integrated amplifiers are described in Section 25 Both R Com and NARCOM 4 remote handsets are included with the NAC 552 The R com is intended for day to day use while the NARCOM 4 can be used for handset based setup and programming 4 1 Source Inputs and Record Outputs The input selection buttons arranged along the upper bank select the source signal to be routed to the power amplifier and the loudspeakers Below them in the lower bank is a corresponding array of buttons which select the signal to be routed to the preamplifier s record outputs These separate source and record sections enable one source a CD player for example to be listened to whilst the output from another say the tuner is simultaneously selected for recording Note It is possible to lock the record controls and prevent accidental de selection during recording Record lock is switched on or off by pressing the source mono button four times within six seconds Indicators are fitted to the NAC 552 rear panel above each input socket These indicators illuminate to provide information on input selection and on input mapping setup and programming 4 2 Input Socket Assignment Any NAC 552 source input socket can be selected by any button For example while the NAC 552 default setup is for the CD input button to select input socket No 2 custom programming of input assignment could enable any input socket to be selected by pressing the
57. riately handling any waste by products Contact your local authority for details of the nearest such facility Appropriate recycling and waste disposal helps conserve resources and protects the environment from contamination
58. s before connecting cables or switching on Ensure that the preamplifier volume is turned down before switching on The following Section 13 paragraphs describe installation features and functions specific to the NAC 202 Operational features common to all preamplifiers and integrated amplifiers are described in Section 25 13 1 Input Sockets and Assignment The input selection buttons select the source input signal to be routed to the power amplifier and the loudspeakers Note If no function is operated within five minutes of entering program mode the NAC 202 will return to normal mode automatically Once in program mode press and hold the remote handset 1 button to select or de select the RCA Phono socket input for CD and the remote handset 6 button to select or de select the RCA Phono socket input for AUX 2 The corresponding front panel input buttons can similarly The NAC 202 has six DIN input sockets and two alternative pairs of RCA Phono sockets The RCA Phono sockets can be assigned individually to the CD and AUX 2 input buttons in place of the DIN sockets Input assignment setup is accessed through the NAC 202 program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode Program mode is indicated by a flashing indicator on the front panel volume control 14 NAC 202 Controls and Connections 14 1 NAC 202 Front be used to select or de select the
59. s interface is an optional upgrade It can be specified at time of order or fitted retrospectively Contact your local representative or Naim Audio directly for further information PLEASE READ THE MANUAL BEFORE USE Note For best performance the Burndy and 5 pin DIN cables should be run as close together as possible SUPERCAP mat E additional signal output mainsinput BY e otc 9 NAC 252 Supercap Specification sable Input Sensitivities 75mV 47kQ i direction NAC 252 Bundy Overload Margins 40dB marker 240 5 to 5 pin DIN all inputs all audio frequencies Main Output Level 0 775V lt 50Q Tape Output Level 75mV 6000 Auxiliary Power Outputs For Naim phono stage Dimensions H x W x D Both 87 x 432 x 314mm Weight NAC 252 7 0kg Supercap 11 6kg Mains Supply Supercap 100 120V or 220 240V 50 60Hz E7 E8 NAC 282 Preamplifier 10 NAC 282 Introduction and Installation The NAC 282 preamplifier does not incorporate an internal power supply but must be used in conjunction with either a Naim power amplifier incorporating a preamplifier power output or with an appropriate Naim power supply A separate NAPSC supply that provides power to the display and control circuits is supplied Diagrams 11 3 and 11 4 illustrate two NAC 282 power supply options Operational features The preamplifier and power supply should be installed on a dedicated equipment commence st
60. socket Replace it if necessary only with the spare fuse supplied or with an identical fuse Repeated failure of the fuse points to a fault that should be investigated by your retailer or Naim itself 2 3 Non rewirable Mains Plugs If a non rewirable plug is cut from a mains lead for whatever purpose the plug MUST be disposed of in a way to render it totally useless Considerable shock hazard exists if the cut off plug is inserted into a mains outlet 2 4 Mains Circuits and Cables A hi fi system usually shares a mains circuit with other household equipment some of which can cause distortion of the mains waveform This distortion can in turn lead to mechanical hum from mains transformers Some Naim transformers are large in size making them relatively sensitive to such distortion and it may be necessary to take account of transformer hum when siting your equipment Transformer hum is not transmitted through the speakers and has no effect on the performance of the system however a separate mains circuit may reduce it Such a circuit ideally with a 30 or 45 Amp rating will also generally improve system performance Advice on the installation of a separate mains circuit should be sought from a qualified electrician Do not substitute alternative mains leads and plugs to those supplied They are selected to offer the best possible performance E1 E2 ntroduction 3 General Installation Naim equipment is designed to
61. tial is achieved This manual covers all preamplifiers integrated amplifiers and power amplifiers It begins with some general installation notes and statutory safety warnings Product specific information begins in Section 4 1 Connections It is important for both safety and performance that the standard cables supplied are not modified 1 1 Interconnect Cables If options are available with your equipment and installation DIN interconnect sockets should be used in preference to RCA Phono sockets One end of each Naim interconnect cable is marked with a band to establish its correct orientation The band denotes the end that connects to the signal source Interconnect plugs and sockets should be kept clean and free from corrosion The easiest way to clean them is to switch off the equipment pull the plugs out of their sockets and push them back in again Contact cleaners and enhancers should not be used as the film they deposit may degrade the sound 1 2 Loudspeaker Cables Loudspeaker cables are vitally important They should each be at least 3 5 metres long and of equal length The recommended maximum is normally 20 metres although longer cables may be viable with some Naim amplifiers Some Naim amplifiers are designed only to work with Naim loudspeaker cable and using alternatives may degrade the performance or even damage the amplifier Other Naim amplifiers can be used with any high quality loudspeak
62. tion For the purposes of brevity the term preamplifier in the following paragraphs can be taken also to mean integrated amplifier 25 1 Automatic Input Switching To select Unity Gain first switch the preamplifier into With Automatic Input Switching engaged the appropriate source input will be selected as soon as any handset function for that Naim source component is operated For example if the tuner input is selected and the cd play key is pressed on the handset the preamplifier will automatically switch to the cd input Automatic Input Switching can be programmed to operate on any combination of the cd av and tuner input buttons and sockets to which they are assigned To enable Automatic Input Switching first switch the preamplifier into program mode by pressing and holding the handset prog key with the handset in preamplifier mode The front panel source mono mon button NAC 202 and NAC 122x mon button Supernait record mute button and Nait 5i tape button will illuminate if automatic switching is already enabled If it is not enabled it can be switched on by pressing the same button With automatic switching enabled pressing the button again will reveal the inputs selected for auto switching by their indicators illuminating for a short time Repeated operation of the button will sequentially select through each possible combination of cd tuner av inputs and auto switching disabled all indicators off When the desire
63. tput option sockets to NAPSC RCSin with link and blanking plugs fitted in3 in4 signal cd tuner tape av ground in 6 alternative Inputs 1 2 amp 6 Inputs 3 4 amp 5 ve ch2 Input alternative ve chl Ve cd RCA aux 2 RCA to power RS232 Phono Phono amplifier interface chi L ch1 L with ch2 R ch2 R internal power supply Note The NAC 282 AUX 2 input is provided with two sockets The lower socket fitted on delivery with a blanking cover is intended for use with a Stageline or Prefix Phono stage and incorporates an appropriate DC power supply The two sockets must not be used simulfaneously Note The RS232 comms interface is an optional upgrade It can be specified at time of order or fitted retrospectively Contact your local representative or Naim Audio directly for further information 11 3 NAC 282 Connected to Supercap and NAPSC mains input and fuse ATTENTION WARNING WARNING E PLEASE READ THE MANUAL BEFORE USE additional signal output to mono or dual mono to stereo power power amplifiers amplifiers cable direction marker Interconnect Cables 4 to 4 pin DIN 240 5 to 5 pin DIN E9 E10 NAC 282 Preamplifier 11 4 NAC 282 Connected to Hi Cap and NAPSC mains input and fuse PLEASE READ THE MANUAL BEFORE USE additional to mono or dual signal out mono power put amplifi

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