Mark Levinson N26 Home Theater System User Manual
Contents
1. PRECAUTION Rear panel Disconnect all associated equipment from the AC mains BEFORE making any signal connections and applying power to the N 26 PLS 226 1 BALANCED OUTPUT If your power amplifier is equipped with balanced input connectors it s best to connect it to the N 26 via these connectors particularly if long cable lengths are required Connect the right channel and left channel BALANCED OUTPUT of the N 26 to the appropriate balanced inputs of the power amplifier The pin assignments of these XLR type male outputs are op Pin 1 Signal ground Pin 2 Signal non inverting ED Pin 3 Signal inverting fy Connector ground lug chassis ground Refer to your power amplifiers operating manual to verify that the pin assignments of its input connector correspond to the N 26 If not wire the cable so that the appropriate output pin connects to the equivalent input pin 2 MAIN OUT Connect these outputs to the right channel and left channel inputs of your power amplifier or electronic crossover These outputs are affected by the OUTPUT LEVEL control on the front panel of the N 26 3 TUNER Acceplts right channel and left channel signal leads from a tuner or other line level source equipment TAPE 1 OUT TAPE 2 OUT Connect these outputs to the right channel and left channel tape inputs of your tape machine TAPE 1 IN TAPE 2 IN Accept right channel and left channel signal leads from the tape outp2. ec evinSon is a registered trademark of Madrigal Audio Laboratories Inc 630031 1 1993 Madrigal Audio Laboratories Inc All rights reserved Printed in U S A
3. 120V 200V 220V or 240V AC mains operation 50 or 60Hz Make sure that the label on the bottom of the PLS 226 indicates the correct AC operating voltage for your location PLS 226 POWER SUPPLY Gaa DC OUTPUTS AC INPUT NN WARNING BEFORE ATTEMPTING TO OPERATE THIS DEVICE REFER TO OWNER S MANUAL FOR PROPER OPERATING INSTRUCTIONS AND SAFETY Voltage PRECAUTIONS HAZARDOUS VOLTAGE voliag AVAILABLE INSIDE DISCONNECT AC indication MAINS CABLE BEFORE REMOVING COVER OPERATING VOLTAGE 90 110VAC O 210 240VAC 105 125VAC O 230 250VAC O 180 220VAC 50 60HZ 100 120VAC MAINS 2ASLO BLO 250VAC 3AB FUSES 200 240VAC 1A SLO BLO 250VAC 3AB SERIALNO NN DESIGNED AND MANUFACTURED IN U S A BY MADRIGAL AUDIO LABORATORIES INC If the voltage indicated is incorrect see your Mark Levinson dealer If you wish to change the AC operating voltage of the N 26 PLS 226 see your Mark Levinson dealer The N 26 PLS 226 can be powered by a normal 15 ampere AC mains line If other devices are also powered from the same AC line their additional power consumption must be taken into account Connectors and cables Internal adjustments line gain Line gain settings Internal adjustments phono gain Phono gain settings high gain option Phono gain settings low gain option set up and installation The N 26 incorporates RCA type and XLR type connectors for audio signal in
4. option 100pf high gain phono option 1000pf Note We recommend high quality polypropylene polystyrene or Teflon capacitors see your Mark Levinson dealer Internal adjustments The N 26 s optional balanced input module allows you to adjust the adjusting the input gain If you wish to adjust the balanced input gain see Making balanced input gain the internal adjustments refer to the table below for the proper switch positions for each gain setting Balanced input Sach 1 1dB 7 1dB gain settings S T Of On 3 off On 4 On Off Making the 1 Make sure all associated equipment is disconnected from the AC internal adjustments mains and that the PLS 226 is disconnected from the AC mains N 26 internal adjustments Phono gain right channel Optional load pins gt 1 2 3 4 Cartridge loading OR x balanced input gain SE right channel TE een TTL OFF Phono gain left channel Optional load pins Cartridge loading OR p h Line gain Line gain balanced input gain tight channel BERA deft Channel Power connection and system activation AC power cord polarity Turning off the N 26 10 2 Using a 3 32 Allen key remove the four 4 40 socket head cap screws securing the end caps on the read of the N 26 s chassis 3 Using a Phillips screwdriv
5. 1 and TAPE 2 inputs INPUT SELECTOR Selects one of the six inputs CD TUNER AUX 1 PHONO AUX 2 depending on the installed option TAPE 1 or TAPE 2 5 OUTPUT LEVEL Adjusts volume at the main outputs The OUTPUT LEVEL control doesn t affect the tape outputs Note In some systems particularly those with high efficiency loudspeakers high gain amplifiers and balanced interconnections it s possible that you may hear some low level sound through your loudspeakers even with the N 26 s OUTPUT LEVEL control set to OFF If this occurs with all inputs reduce the line gain via the internal switches If this occurs only when listening to the source connected to the N 26 s optional balanced input reduce the balanced input gain via the internal switches See Set up and installation 6 BALANCE 1 BALANCE 2 Adjusts volume at the main outputs The BALANCE controls don t affect the tape outputs 7 STEREO MONO Selects between monaural or stereo mode at the main output The STEREO MONO switch doesn t affect the tape outputs BALANCED OUTPUT B L MAIN OUT JEN HN OPTIONAL BALANCED INPUT TAPE 2 OUT TAPE 1 OUT POWE DUALMONAURAL oes SUPPLY R AUX2 L AS FR ex N INPUT PREAMPLIFIER 2 y N 26 PUSH PUSH 2 NE Us us T T T i R L R L TAPE 2 wl 1TAPE1IN a PHONO AUX 2 PEN N N SNC I ORLO oro Q9 effe OP KO KO o
6. Operating Manual Mark Levinson N 26 Dual Monaural Preamplifier Madrigal Audio Laboratories Inc WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance Important safety instructions Please read all instructions and precautions carefully and completely before operating your N 26 Dual Monaural Preamplifier 1 ALWAYS disconnect your entire system from the AC mains before connecting or disconnecting any cables or when cleaning any component 2 This product is equipped with a three conductor AC mains power cord which includes an earth ground connection To prevent shock hazard all three connections must ALWAYS be used If your electrical outlets will not accept this type of plug an adapter ma
7. annel The high gain and low gain phono options have been factory adjusted at the lowest gain settings 58dB and 38dB respectively If you wish to increase the gain see Making the internal adjustments refer to the tables below for the proper switch positions for each gain settings Switch 1 2 Gain Nominal Cartridge Output 3 54 cm sec On Off 58dB 2mV 6mV Off On 64dB 2mV and Lower Switch 1 2 Gain Nominal Cartridge Output 3 54 cm sec On Off 38dB Greater than 2 0mV Off On 44dB 2 0mV and Lower Internal adjustments cartridge loading Cartridge loading settings high gain option Cartridge loading settings low gain option Internal adjustments optional load terminals Terminating the optional load The high gain and low gain phono options offer internally selectable cartridge loading via two four pole miniature rocker switches one for each channel The high gain and low gain options have been factory adjusted at 8250 and 47KQ respectively If you wish to change the factory adjusted cartridge loading see Making the internal adjustments refer to the table below for the proper switch positions for each load setting Switch 10KQ 8250 1000 300 Optional 1 Off On Off Off Off 2 Off Off On Off Off 3 Off Off Off On Off 4 Off Off Off Off On Switch 47KQ 22KQ 10KQ 825Q Optional 1 Off On Off Off Off 2 Off Off On Off Off 3 Off Off Off On Off 4 Off Off Off Off On Resistance value
8. ensions PLS 226 side view JL 14 Dimensions PLS 226 fop view LL 14 INPUT TAPE 2 DEFEAT MONITOR TAPE 1 RECORD LECTOR MONITOR ELECTOR K STEREO MONO DUAL MONAURAL PREAMPLIFIER 1 Front panel RECORD SELECTOR Selects between the program source selected via the INPUT SELECTOR and either of two tape monitor inputs selected via the MONITOR SELECTOR In the DEFEAT position the tape outputs are disconnected In the INPUT position the tape outputs are connected while still monitoring the selected source In the MONITOR position the selected tape machine can be monitored without affecting the signal at the tape outputs Note Because of the switching arrangement employed in the N 26 we recommend that while making a critical recording you don t operate the RECORD SELECTOR switch If you wish to monitor the signal from tape set the RECORD SELECTOR to MONITOR and use your tape machine s monitor switch to switch between input and tape 0 180 In the 0 position the signal at the main outputs is in phase with the input signal In the 180 position the output signal is inverted 180 degrees This allows you to optimize your system s sonic performance based on recording mastering processes used for a specific program The 0 180 switch doesn t affect the tape outputs MONITOR SELECTOR When the RECORD SELECTOR is in the MONITOR position this selects between the TAPE
9. er remove the four 4 40 screws securing the N 26 s top plate Carefully slide the top plate to the rear and remove it 4 Adjust the gain switches using a ballpoint pen or similar instrument and install optional loads as desired 5 Reassemble the N 26 Be sure all associated equipment is disconnected from the AC mains After making all signal connections and internal adjustments connect the DC coble to either of the DC connectors on the rear panel of the PLS 226 Connect the other end of the DC cable to the POWER SUPPLY INPUT connector on the rear panel of the N 26 Connect the AC cord to the male IEC connector on the rear panel of the PLS 226 then connect the AC cord to the AC mains To PLS 226 To AC mains 1 Line hot 2 Neutral 3 Earth ground The LEDs on the PLS 226 and N 26 will light Allow the N 26 s circuitry to stabilize for 1 to 2 minutes then connect all associated equipment to the AC mains and activate it For optimal sonic performance and longevity the N 26 PLS 226 is designed to remain powered at all times a power on power off switch isn t provided Before connecting or disconnecting the PLS 226 from the AC mains be sure that the N 26 s OUTPUT LEVEL is set to OFF the lowest position and that your power amplifiers are turned off Care and maintenance To remove dust from the cabinet of the N 26 use a feather duster To remove dirt and fingerprints we recommend isopropyl alco
10. hol and a soft cloth 11 Specifications The correlation between published specifications and sonic quality is unreliable A list of numbers reveals virtually nothing All technical measurements must be subject to qualitative as well as quantitative interpretation Measurements of the N 26 yield excellent results by any standards However only those specifications that apply to its actual operation are included here B Power consumption 50W maximum depending on options B Mains voltage 100V 120V 200V 220V or 240VAC 50 60Hz B Overall dimensions See Dimensions B Shipping weight 2 boxes 30 Ibs 13 6kg B Connector complement 18 female RCA type connectors 2 XLR type female connectors 2 XLR type male connectors 1 binding post turntable ground 3 nine pin connectors 1 IEC mains connector Phono section B Gain Selectable see Set up and installation B Moving magnet phono option 38dB 44dB B Moving coil phono option 58dB 64dB B input impedance Selectable see Set up and installation B Output impedance 100 B Maximum output TAPE output 6V B Recommended load TAPE outputs 10KG or greater Line section B Gain Selectable see Set up and installation B Single ended 6dB 12dB 18dB B Balanced 12dB 18dB 24dB B Input impedance 14KQ shunted by 220pf B Maximum output MAIN outputs 6V B Recommended load TAPE outputs 6000 or greater For more information see your Mark Levinson dealer or co
11. ntact Madrigal Audio Laboratories Inc 2081 South Main Street Route 17 P O Box 781 Middletown Connecticut 06457 USA Telephone 203 346 0896 FAX 203 346 1540 If purchased in North America this Mark Levinson product s warranty is owner transferable Warranty conditions are valid only in the country where the product was originally purchased For warranty information and conditions on products purchased outside of North America contact your local dealer or regional distributor 3 8 9 5 7 64 25 Dimensions N 26 top view uo t 3 4 dia O 19 1 17 19 64 439 4 15 3 64 17 1 2 382 0 444 5 1 1 4 10 1 2 31 8 266 7 E 13 1 8 333 4 Dimensions N 26 side view 1 1 2 35 64 2 3 4 64 8 69 9 7 16 7 64 11 1 2 5 14 Dimensions PLS 226 top view Dimensions PLS 226 side view 3 8 9 5 7 64 2 5 B5 1 3 4 dia O 7 13 32 19 1 187 9 5 9 64 7 39 64 130 6 193 0 31 8 266 7 v Y v P 13 1 8 333 4 4 i 2 35 64 2 3 4 64 8 69 9 7 16 7 64 11 1 2 5 MADRIGAL MADRIGAL AUDIO LABORATORIES 2081 South Main Street P O Box 781 Middletown Connecticut 06457 USA Telephone 203 346 0896 Fax 203 346 1540
12. put and output The Madrigal designed RCA type connectors used for single ended audio interconnection are a great improvement over ordinary RCA type connectors The gold plated XLR type connectors employed are of European design and are made to professional standards When connecting the N 26 to source equipment and power amplifiers we recommend Madrigal Audio Laboratories HPC Interconnect Cable HPC is available in various lengths terminated with RCA XLR and Camac connectors See your Mark Levinson dealer for more information The N 26 offers internal gain adjustment of the line amplifiers in 6dB steps via two four pole miniature rocker switches one for each channel These switches have been factory adjusted at the lowest gain position 6dB of line gain in single ended operation and 12dB of line gain in balanced operation In practice you should have enough gain so that normal listening is possible with the OUTPUT LEVEL set at approximately 6 If you wish to increase the line gain see Making the internal adjustments refer to the table below for the proper switch positions for each gain setting Switch Gain 1 2 3 4 Single Ended Output Balanced Output On On Off Off 18dB 24dB Off On On Off 12dB 18dB Off Off On On 6 dB 12dB The N 26 is available with either a high gain or low gain phono option Each option offers two internally adjustable gain settings via two two pole miniature rocker switches one for each ch
13. r eroi 3 Unpacking and placement nn aanaan eenen eenen aaa aaa 5 UNPACKING REE 5 PIOCEMENT E 5 VETO ot TM 5 Voltage selection tee Li nn 6 PLS 226 bottom panel label Ja 6 Set up and installation Annan 7 Connector and CUBES tom e mtt regie Di i ER a 7 Internal adjustments line gain ss 7 Line gain sellings s en td in rede a d ag d ere 7 Internal adjustments phono gain LL 7 Phono gain settings high gain Op OO 7 Phono gain settings low gain OO OO 7 Internal adjustments cartridge loading eee 8 Cartridge loading settings high gain option LL 8 Cartridge loading settings low gain option LL 8 Internal adjustments optional load terminals nnn neren 8 Terminating the optional load sse 8 Internal adjustments varying the input capacitance 9 Internal adjustments adjusting the balanced input gain 9 Balanced input gain settings Lakis 9 Making the internal adjustments J 9 N 26 internal adjustments aaa 9 Power connection and system activation uu 10 AC power cord polarity t i anisi a Pi k 10 Turning Te NR OR 10 Care and maintenance ierit eerta necne renti teta ende denn 11 SD CINICatHONS mc Rm 12 PROMO SECTION scraivesd EE 12 LINE SECTION awit aw aia andalan ero epe eR Rd Ces ete edi 12 Dim enslOns 35er EE 13 Dimensions N226 top Ve 13 Dimensions N226 side view sees 13 Dim
14. s other than those listed above can be accommodated via the optional load terminals Load resistors can be inserted into these terminals allowing virtually any load desired Optional load t componen Solar S 2 r i PC board See Making the internal adjustments refer to the Cartridge loading settings tables for the proper switch positions for the optional load Because the inherent input resistance all switches off is in parallel with the optional load terminals use this formula to calculate the actual resistor needed R 1 1 RD X RD Desired resistance in ohms X 0 00002 for Low gain Phono Option 0 0001 for High gain Phono Option Note We recommend precision metal film resistors see your Mark Levinson dealer Internal adjustments If you wish to vary the input capacitance of the phono option to varying the input obtain the optimal value for a particular cartridge a capacitor may capacitance also be inserted into the optional load terminals see Terminating the optional load and Making the internal adjustments Because the inherent input capacitance all switches off is in parallel with the optional load terminals use the following formula to calculate the actual capacitor needed C C C C C The capacitor value C Recommended capacitance value C Tonearm capacitance including leads C Preamplifier inherent shunt capacitance Low gain phono
15. tput pin connects to the equivalent input pin Unpacking Placement Ventilation PRECAUTION Unpacking and placement Unpack your N 26 Preamplifier and PLS 226 Power Supply and keep all packing materials for future transport Remove all accessories from the cartons Carefully inspect the product for damage and flaws If you find any see your Mark Levinson dealer immediately Place the N 26 as close as possible to the source equipment thus keeping interconnect cabling as short as possible It may be placed on a shelf or in a cabinet where it s convenient to operate A one meter DC cable is provided to connect the PLS 226 to the N 26 This allows you to place the PLS 226 so that it won t induce hum in the N226 and other sensitive components If you re placing the N 26 and PLS 226 adjacent to each other place the PLS 226 to the right of the N 26 viewed from the front You should also place associated equipment so that it doesn t induce hum in the N 26 and other sensitive components Be sure to allow 3 to 4 inches of clearance above both the N 26 and the PLS 226 to allow heat dissipation through air circulation Drawings are included in this manual to facilitate special installations and custom cabinetry see Dimensions For your protection review Important safety instructions before you install your N 26 PLS 226 bottom panel label Voltage selection The PLS 226 is factory set internally for 100V
16. ut connectors of a tape machine These inputs can also be used with other line level source equipment These outputs are unaffected by the OUTPUT LEVEL control on the front panel of the N 26 POWER SUPPLY INPUT Accepts one end of the DC cable that connects the N 26 to the PLS 226 CD Accepts right channel and left channel balanced signal leads from a CD player or other line level source equipment AUX 1 Acceplts right channel and left channel signal leads from line level source equipment PHONO AUX 2 If your N 26 is equipped with the phono option connect your turntable s right channel and left channel signal leads to these inputs If your N 26 isn t equipped with a phono option these inputs will accept signal leads from any line level source equipment Ground binding post Connect your tonearm s ground lead to this binding post OPTIONAL BALANCED INPUT If your N 26 is equipped with the balanced input option connect The right channel and left channel balanced line level signal leads from source equipment with balanced output The pin assignments of these XLR type female input connectors are Pin 1 Signal ground Pin 2 Signal non inverting Pin 3 Signal inverting e Connector ground lug chassis ground Refer to the operating manual of your balanced output line level source to verify that the pin assignments of its output connector correspond to the N 26 If not wire the cable so that the appropriate ou
17. y be purchased If an adapter is necessary be sure if is an approved type and is used properly supplying an earth ground If you are not sure of the integrity of your home electrical system contact a licensed electrician for assistance 3 AC extension cords are not recommended for use with this product If an extension cord must be used be sure it is an approved type and has sufficient current carrying capacity to power this product 4 NEVER use flammable or combustible chemicals for cleaning audio components 5 NEVER operate this product with any covers removed 6 NEVER wet the inside of this product with any liguid 7 NEVER pour or spill liquids directly onto this unit 8 NEVER block air flow through ventilation slots or heatsinks 9 NEVER bypass any fuse 10 NEVER replace any fuse with a value or type other than those specified 11 NEVER attempt to repair this product If a problem occurs contact your Mark Levinson retailer 12 NEVER expose this product to extremely high or low temperatures 13 NEVER operate this product in an explosive atmosphere 14 ALWAYS keep electrical equipment out of the reach of children From all of us at Madrigal Audio Laboratories thank you for choosing the Mark Levinson N 26 Dual Monaural Preamplifier A great deal of effort went into the design and construction of this precision device Used properly it will give you many years of enjoyment Table of contents Front Dan 1 Rea
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