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O W N E R S M A N U A L

Preamplifiers, Integrated Amplifier, Power Amplifiers, Power Supplies

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Summary of Contents for Amplifiers

Page 1: ...WORLD CLAS S H I F I O W N E R S M A N U A L Preamplifiers Integrated Amplifier Power Amplifiers Power Supplies...

Page 2: ...f Conformity IMPORTANT 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...

Page 3: ...lation notes and statutory safety warnings for all Naim Audio products Product specific information begins in Section 5 1 Equipment Installation Normally your Naim Audio equipment will have been insta...

Page 4: ...kely to suffer 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 rad...

Page 5: ...nd 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 mapped To change the input s...

Page 6: ...s to input mapping will automatically disable previously set up unity gain inputs Additionally if an input is selected which has unity gain enabled the NAC 552 volume and balance handset functions wil...

Page 7: ...s 4 5 6 ve ve ve ch1 ve ch2 Input 7 7 NAC 552 NAC 552PS Specification Input Sensitivities 75mV 47k Overload Margins 40dB all inputs all audio frequencies Main Output Level 0 775V 50 Tape Output Level...

Page 8: ...anel source mono button will illuminate if automatic switching is already enabled If it is not enabled it can be switched on by pressing the source mono button twice With auto switching enabled pressi...

Page 9: ...main muted for 30 seconds while control systems and circuits stabilise The source side will then un mute automatically leaving the record side muted Note A flashing mute indicator after switch on indi...

Page 10: ...upercap 100 120V or 220 240V 50 60Hz 9 2 NAC 252 Rear in 1 cd in 2 tuner in 3 tape in 4 av signal ground in 6 alternative cd RCA Phono ch1 ch2 aux 2 RCA Phono ch1 ch2 RS232 interface supercap RC5 cont...

Page 11: ...it is not enabled it can be switched on by pressing the source mono button twice With auto switching enabled pressing the source mono button will reveal the inputs selected for auto switching by thei...

Page 12: ...for more information The Flash and iCom handset will also control the NAC 252 See Sections 23 and 25 for more information 11 10 Defaults To restore all programmable settings to the factory defaults pr...

Page 13: ...stage Dimensions H x W x D NAC 282 87 x 432 x 314mm 12 3 NAC 282 Connected to Supercap and NAPSC NAC 282 mains input and fuse to stereo power amplifiers to mono or dual mono power amplifiers additiona...

Page 14: ...l on exiting 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 on the AV i...

Page 15: ...f by pressing the remote handset in preamplifier mode disp function Any subsequent handset or front panel operation will temporarily restore the display A second operation of the disp function will pe...

Page 16: ...t 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 direct...

Page 17: ...or button To disable automatic input switching press the mon key or mon button repeatedly until no input buttons are illuminated Automatic input switching only becomes operational or is cancelled on e...

Page 18: ...uished when record mute is disengaged Record mute can be engaged and disengaged from the remote handset by operating the record monitor function followed by the mute function 17 10 Display The NAC 112...

Page 19: ...RC5 in ch1 ve nc nc ch2 Inputs 1 2 6 ch1 ve ch1 out ch2 out ch2 Inputs 3 4 5 ve ve ve ch1 ve ch2 Input 6 alternative signal ground Note The NAC 112x AUX 2 input is provided with two sockets The left...

Page 20: ...omatic input switching only becomes operational or is cancelled on exiting from program mode by pressing and holding the handset prog key or front panel cd button 20 3 AV Integration Unity Gain The Un...

Page 21: ...channel are common The mains earth ground should always be connected regardless of what other equipment is used in conjunction with the amplifier This only grounds the case and the electrostatic scre...

Page 22: ...functions within each page is described in the following paragraphs PRE preamplifier mode Page 1 of 2 source Selects the next input source source Selects the previous input source bal Adjusts balance...

Page 23: ...this is the only track remaining and therefore cannot be deleted A random play order can be programmed from stop with no play order already in place by pressing prog followed by 1 Similarly to program...

Page 24: ...n tuner mode the numeric keys will select tuner presets or tuner frequency In record mode the numeric keys will switch between record inputs on appropriately equipped preamplifiers 24 5 CD Track Progr...

Page 25: ...etting numeric keys In preamp mode the numeric keys will switch between the preamplifier inputs In cd mode the numeric keys will select tracks disp Selects the component front panel display mode prog...

Page 26: ...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 PROT...

Page 27: ...Transient Quiescent Consumption 60VA Voltage Gain 29dB Input Impedance 18k Frequency Response 3dB 1 5Hz and 100kHz Dimensionss H x W x D NAP 500 160 x 432 x 375mm NAP 500PS 87 x 432 x 314mm Weight NA...

Page 28: ...IER 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 29 3 Loudspeaker Cable and Connectors Only...

Page 29: ...hannel 8 500 VA Transient Quiescent Consumption 27VA Voltage Gain 29dB Input Impedance 18k Frequency Response 3dB 2Hz and 70kHz Dimensions H x W x D Both 87 x 432 x 314mm Weight NAP 300 10 7kg NAP 300...

Page 30: ...er button is located on the front panel The NAP 250 is very 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 OPERAT...

Page 31: ...ed down before switching on the NAPV 145 The NAPV 145 power button is located on the front panel The NAPV 145 is very heavy and care should be taken when lifting or moving it Make sure that the surfac...

Page 32: ...fier 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...

Page 33: ...ply output is carried on the DIN input socket The NAP 150x 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 OPER...

Page 34: ...les 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 an...

Page 35: ...ones Audio line level input for each zone is via 4 pin DIN sockets 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...

Page 36: ...Power supplies 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 full weight 50 1 Supercap Rear socket 1 socke...

Page 37: ...latcap 2 and NAPSA 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 full weight mains input and fuse 51 1 Flat...

Page 38: ...16 A per phase Immunity Tested to EN55020 Electromagnetic immunity of broadcast receivers and associated equipment In accordance with CISPR 16 1 Radio disturbance and immunity measuring apparatus CIS...

Page 39: ...37...

Page 40: ...332266 Fax 44 0 1722 412034 www naim audio com Part No OWMDV Part No OWMDV Drawing No NA102001 400 Naim Audio Limited Southampton Road Salisbury England SP1 2LN Telephone 44 0 1722 332266 Fax 44 0 17...

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