Plinius Audio P8 User's Manual
Contents
1. in firmly then turn clockwise to the right until it comes to a stop Release inward pressure on the cap and the fuse will be fitted securely IMPORTANT DO NOT FIT A FUSE WITH A HIGHER RATING Note that fuse failure may indicate a severe problem Check all speakers and speaker cables for damage short circuit etc Should the amplifier continue to suffer rail fuse failure contact your PLINIUS dealer MAINS LINE FUSE A Mains Line fuse is fitted within the IEC socket on the rear of the amplifier A small drawer at the bottom of this socket may be removed after the IEC plug is removed by levering it out with a flat blade screwdriver The fuse fitted should be rated at no greater than 10 amps normal blow IMPORTANT DO NOT FIT A FUSE WITH A HIGHER RATING In the unusual event that this fuse should blow you must first establish the cause of this failure such as power surges damaged mains cable etc before replacing the fuse with one of the same rating and type Should the amplifier continue to suffer mains fuse failure contact your PLINIUS dealer OUDSPEAKER SELECTION Your Plinius P8 Power Amplifier is designed for use with high fidelity loudspeakers It should not be used to operate any other type of appliance or equipment Choice of loudspeakers is one of personal taste providing the chosen loudspeakers are suitable for use with your amplifier Be certain that your loudspeakers can handle most of the rated output power of this2. ALITY Quality of the connections must be examined to ensure that high performance trouble free operation is enjoyed Check that the connections are tight but do not over tighten If bare wires are used make sure that no loose strands of wire short across the other terminals or the amplifier chassis When using plugs such as bananas be sure to use good quality plugs with a firm fit BI WIRING Bi wiring uses two pairs of loudspeaker cables for each channel loudspeaker You will notice that the rear panel of your Plinius P8 has two pairs of output terminals for this purpose When using bi wires always connect positive to positive and the same for the negative terminals PHASING OR POLARITY It is important to achieve good stereo imaging in your listening room By observing the wiring instructions above each power amplifier loudspeaker combination should be in phase If you experience poor stereo image and or a lack of bass check that the loudspeaker wiring has been connected correctly We recommend that you use one of the easily obtainable test discs to help you ensure both phasing and channel orientation are correct If in doubt consult your PLINIUS dealer for advice Naturally it is also important to make sure all the leads carrying signals for the RIGHT channel loudspeaker are connected to the RIGHT input to the amplifier from your preamplifier or CD player etc Signals for the LEFT channel should be wired in a similar fas
3. PLINIUS PO otereo Power Amplifier INSTRUCTION MANUAL REFINED AUDIO EQUIPMENT CONGRATULATIONS on your decision to become the proud owner of this Plinius P8 Power Amplifier his manual has been prepared to help you understand the operation of your amplifier and to provide information about its design and the variety of ways it may be used We have designed and manufactured this amplifier to reproduce your favourite music faithfully and accurately With a little care and a full understanding of the operating recommendations in this manual your Plinius P8 Power Amplifier will provide years of high quality trouble free performance Serial Number Mm Date of Manufacture asai aa Diode aa aa bet aen Final Test Certified By abi a a a ad a ia IMPORTANT PLEASE TAKE THE TIME TO READ THIS MANUAL THOROUGHLY BEFORE USING YOUR AMPLIFIER CONTENTS 3 SIUS 5 AUD T Features FROME PAE 6 Features Rear Panel a Page 9 Ie Page 10 I O AI US ua Aa aaa aa ai sa a a a _ _ _ a as Page 12 Loudspeaker ECO i a aa i a aa i Page 13 MUN revenu L LLS Page 14 HV Rr TT _____________ _ __ __ E Page 15 COMAL DEAS Aenean ania ao a i aa iai and A aa a i Page 16 PRECAUTIONS Please take special note of the following precautions before op
4. UTIMPEDANCE 4 kQ HEIGHT 120mm 4 3 4 WIDTH 450mm 17 3 4 385mm 15 1 4 WEIGHT 14kg 30105 sje Ts c Page 10 Br crop MLG IO NR ERE Page 3 E IO LEI 210 IEC asai ja ES Page 6 RTT TEN Page 12 Wer C Pages 8 11 ID BIOTIN LS ER t EE E EET TEM Pages 8 11 HNPCC ANGE cuesta os i adis Abi a meum I o DLL Page 13 BIOS DC AK I OV Cl ce dod du MEG C DIM Page 13 Mans EINST SG asis aaa aa i i D a a ai EDEN Page 12 Mains Supply LETT SEM Page 11 Mano AL Mite sets saaa ai ESO Page Oosikas a a a S Pages 5 9 Pages 7 10 las lo r AAE A E EA T AE EAE EA T Page 10 E CD Pages 5 9 TTE Pages 8 12 uie 7 APRI NR TREE Page 8 SIE SC TUMORS aus an ROLE MIL M DD a EIDEM Page 5 Se CIM IRM Oe RR ET a T Page 3 E 10 aaa a SS Pages 5 9 Lali OB LOG Asas i M MD M I ENIM RM D Md UE Page 11 CONTACT DETAILS All operational technical and descriptive material published here is subject to change at any time without notice For further product information or queries please contact us at the address below PLINIUS products are designed and manufactured by Audible Technologies Ltd P 0 Box 1836 Palmer
5. amplifier You may find loudspeaker specifications confusing or misleading so you should discuss this with your audio dealer prior to purchase As a general rule the use of high power 200 Watt RMS or greater loudspeakers is recommended and desirable However our experience indicates that medium to low power loudspeakers 100 to 200 Watt RMS are quite often suitable for use on this amplifier provided the volume is maintained at a level where no distortion is audible Impedance of the loudspeaker load is important to ensure the rated performance of this amplifier Any combination of loudspeakers may be used but the total average impedance load for each channel should be within a range of 4 to 8 ohms Again if you have doubts about the impedance of your loudspeaker configuration we recommend you speak to your PLINIUS dealer SPECIFICATIONS 200 WATTS RMS PER CHANNEL INTO 8 OHMS BOTH CHANNELS DRIVEN FROM 20Hz TO 20kHz AT LESS THAN 0 2 TOTAL HARMONIC DISTORTION FREQUENCY RESPONSE 20Hz to 20kHz 0 208 3dB at 5Hz and 3dB at 70kHz DISTORTION Typically lt 0 05 THD at rated power 0 2 THD and IM worst case prior to clipping 40HM 300 Watts per channel or greater CURRENT OUTPUT 40A short duration peak per channel Fuse protected OLEWING 50 15 amp Noise 90dB below rated output 20Hz to 20kHz unweighted INPUT SENSITIVITY 1 75V RMS for rated output at 1kHz GAIN 2708 NP
6. el pairs of five way binding posts for each channel are fitted these provide ease of use with bi wiring and multiple cables requiring a large contact area GROUND LIFT SWITCH his switch is located below the remote trigger terminals and allows the signal ground to be disconnected from the chassis In some installations a hum loop may exist due to duplicate ground paths from different equipment Use this switch to remove the connection from OV to ground thus allowing some flexibility in your particular set up REMOTE TRIGGER TERMINALS In order to integrate more effectively into a home theatre system the Plinius P8 has remote trigger terminals fitted to the rear panel By connecting a processor with a 5 12V remote trigger signal to these terminals the P8 can be put in and out of standby mute by the processor to which it is connected When in standby mute the amplifier draws less current and will operate at minimum temperature The output relays are also open disconnecting the loudspeakers This may be of advantage in a multi amplifier and or remote installations The standby mute mode can only be activated via the remote trigger terminals MAINS POWER CORD IEC SOCKET This connector is where the mains supply cable from your wall connects to the amplifier You will notice that a fuse holder is mounted within this connection and it holds a mains fuse to provide surge and overload protection for your amplifier RAIL FUSES These tubular
7. erating your new amplifier The Plinius P8 Power Amplifier can deliver in excess of 175 watts into 8 ohms This amplifier is also capable of a very large peak current delivery The Plinius P8 Power Amplifier operates in Class AB It is capable of generating heat that could have an adverse effect on other electronic equipment furniture etc DO NOT leave flammable material on the amplifier whilst running as this could pose a serious fire risk his amplifier operates at hazardous voltage levels We recommend that any work requiring removal of the lid be referred to a suitably qualified and experienced service technician DO NOT attempt to connect any input of this amplifier to its own outputs DO NOT earth any output terminal or connect any of these terminals together without following the instructions in this manual or seeking qualified assistance DO NOT place this amplifier in any position where liquids or any foreign material may accidentally enter it DO NOT connect any voltage source short circuit earth ground or appliance other than suitable high fidelity loudspeakers to the amplifier output terminals AMPLIFIER FEATURES FRONT PANEL FRONT PANEL LAYOUT SHOWING DISPLAY LED DISPLAY LED An LED on the front panel indicates that the power is on When first switched on the display LED will pulse for ten seconds this is an initialisation sequence after which the LED remains lit during the time the amplifier is
8. fuse holders house the positive and negative rail protection fuses Depress and turn anti clockwise to open An LED is fitted next to each fuse holder to indicate a blown fuse INSTALLATION AND OPERATION PLACEMENT AND VENTILATION Your Plinius P8 may operate at a moderately high temperature especially when being driven hard The ideal location is upon a rigid stand or floor mounted away from direct contact with any temperature sensitive materials or deep pile carpets Ventilation through and around the amplifier should also be kept unimpeded so ensure that the heat vents slots in the lid and base are not covered or restricted in any way The Plinius design incorporates a very high level of mechanical de coupling of the input and output It can however still be influenced by acoustical feedback in the operating environment The use of acoustic cones or a Suitably spiked amplifier stand or table may further enhance the performance of this amplifier Consult your PLINIUS dealer for further advice if required MAINS VOLTAGE CONNECTION Firstly check that the mains supply voltage printed on the rear of this amplifier is similar to the mains supply voltage in your area If in doubt please consult your PLINIUS dealer Mains supply power connection is via the supplied plug in lead A standard IEC socket connects the mains power at the amplifier end while a local mains plug is required at the wall end The wiring code used inside all Pli
9. hion CONNECTING THE MAINS SUPPLY Now that your Plinius P8 Power Amplifier is configured correctly the mains cable can be plugged into the IEC socket on the back of the amplifier Turn on the power switch on the rear panel The power LED will pulse for ten seconds as the internal microprocessor allows the internal circuitry to stabilise You can now enjoy your new Plinius P8 Power Amplifier WARM UP PERIOD You will find that the Plinius P8 will become noticeably purer in sound after being on for a period of time We usually recommend waiting at least 24 hours before expecting the best quality of sound reproduction from your amplifier Also as the Plinius P8 uses very little power while on we suggest leaving the unit turned on so that it will always be at it s sonic best P8 FEATURES FUSE PROTECTION When rail fuse is damaged or more fuse warning LED S will light These LED s are located next to the fuse that has blown To replace the fuse steady the amplifier then firmly push in the round fuse cap with your fingers When the cap cannot push in any further rotate the cap anticlockwise to the left until it comes to a stop Release inward pressure on the fuse cap and it can now be removed from the amplifier If any of the rail fuses need to be replaced do so only with 7 5 amp normal blow fuses To re fit the fuse insert the fuse and gently turn it as far as possible anticlockwise to the left Now push the fuse cap
10. nius product is Green to Earth Ground Blue to Neutral Brown to Phase Live Should a local plug need fitting to the wall end of the lead ensure that a suitably qualified service technician wires the plug correctly IMPORTANT DO NOT POWER UP YOUR AMPLIFIER UNTIL YOU HAVE CONNECTED YOUR INPUT OUTPUTS CORRECTLY FOR YOUR SYSTEM AS EXPLAINED IN THE NEXT SECTION INPUT OUTPUT CONNECTION It is important that you connect your loudspeakers outputs and preamplifier inputs to the Plinius P8 Power Amplifier correctly to ensure the amplifier is not damaged and sounds its best with your system Now that you have read and familiarised yourself with the connections on the back of the amplifier as covered in the previous section we will describe in detail how to connect the amplifier to your system Connect your preamplifier to the RCA inputs on the back of the Plinius P8 Make sure you connect the red coded cable to the red RIGHT RCA input and the black or white cable to the black LEFT RCA input Also make sure the RCA connectors are a snug fit and are inserted all the way in Next connect your loudspeaker wires to the output posts Connect your right loudspeaker i e the one on the right of you when seated in your normal listening position to the right output terminals ensuring that the red positive 4 terminal is connected to the red terminal on your loudspeaker Do the same with the black or negative terminals TERMINATION QU
11. powered on Whenever remote trigger is activated the LED will dim AMPLIFIER FEATURES HEAR PANEL This panel incorporates the terminals for connecting the input signal from the preamplifier outputs to the loudspeakers and mains supply Please remember that your Plinius P8 Power Amplifier is a high quality electronic instrument capable of an exceptional level of performance Be sure that you understand your system s requirements fully before you make any connection to this amplifier C DNAD ees NSE ma Rear Panel Showing Input And Output Terminals Remote Trigger Ground Lift Switch Mains Switch And Mains Socket MAINS SWITCH The heavy duty rocker switch in the centre of the panel turns the Mains Line Power to the amplifier ON or OFF The amplifier draws a moderately high current when switched on so it is not good practice to rapidly turn the Mains switch on and off repeatedly INPUT TERMINALS The input terminals for your Plinius P8 Power Amplifier are easily accessible at the top centre of the rear panel These standard RCA terminals are for use with unbalanced signals single ended RCA from a line level output preamplifier Consult your PLINIUS dealer for further advice if required OUTPUT TERMINALS Connections for the loudspeakers are provided on the left and right sides of the rear panel Two parall
12. ston North New Zealand Phone 64 6 354 8585 Facsimile 64 6 354 8586 Email info pliniusaudio com Internet www pliniusaudio com 2003 Audible Technologies
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