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W O R L D C L A S S H I F I
O W N E R S M A N U A L
I S S U E 2
Preamplifiers: NAC 552, NAC 252, NAC 282, NAC 202, NAC 112

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Table of Contents
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Summary of Contents for NAIM NAC 112 - ISSUE 2

  • Page 1 W O R L D C L A S S H I F I O W N E R S M A N U A L I S S U E 2 Preamplifiers: NAC 552, NAC 252, NAC 282, NAC 202, NAC 112...
  • Page 2: Table Of Contents

    1 Equipment Installation 3.5 if you have a problem Normally your Naim equipment will have been installed by the dealer who sold it to you 4 Warnings even if you live outside their immediate vicinity. Your dealer is responsible for making...
  • Page 3: Mains Supply

    In most territories a dealer must be prepared to take back improve system performance. any Naim equipment he has sold you if he cannot make it work to your satisfaction in your own home. A problem may Do not wire voltage dependent resistors or noise be due to a fault in any part of the system or its suppressors into mains plugs.
  • Page 4: Connection

    Use of non-standard speaker cables or interconnects may correct replacement must be obtained from your dealer, or invalidate your guarantee. from Naim Audio direct. Do not use the plug until the fuse carrier is replaced. 5.4 plug fuses Replace only with ASTA or BS 1362 approved fuses.
  • Page 5: Nac 552

    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.
  • Page 6 NAC 552 as previously described. The front panel source mono Note: The unity gain feature must be used with care. It button will illuminate if automatic switching is already effectively by-passes the NAC 552 volume and balance enabled. If it is not enabled it can be switched on by controls leaving any signal connected to a unity gain input pressing the source mono...
  • Page 7: Nac 552 Connections

    NAC 552 Connections 7.1 Front source selectors mono mute record selectors volume balance 7.2 Rear in 7 rc5 control in NAC 552PS in in 1 in 2 in 3 in 4 in 5 in 6 signal ground in 8 in 9 NAC 552PS in ch 1 ch 1...
  • Page 8 NAC 552 Connections 7.3 NAC 552 connection to NAC 552PS power supply NAC 552 additional signal output NAC 552PS mains in to mono or dual to stereo power mono power amplifiers amplifiers Note For best performance the Burndy 5 pin DIN cables should be run as close together as possible.
  • Page 9: Nac 252

    Below them, in the lower soon as any handset function for a particular Naim source bank, are a corresponding array of buttons which select the component is operated. For example, if the tuner input is signal to be routed to the preamplifier’s record outputs.
  • Page 10: 10 9 Nac 252 Connections

    NAC 252 8.4 av integration (unity gain) 8.8 switch-on The NAC 252 unity gain function enables an audio-visual After switch-on, via the Supercap front panel power button, processor to be integrated such that the processor’s the NAC 252 will remain muted for 30 seconds while volume control takes over command of signals connected control systems and circuits stabilise.
  • Page 11 NAC 252 Connections 9.1 Front source selectors mono mute record selectors volume balance in 5 in 6 9.2 Rear aux 1 aux 2 Supercap in rc5 control in in 1 in 2 in 3 in 4 signal aux 2 Supercap optional in 6 (alternative) tuner...
  • Page 12 NAC 252 Connections 9.3 NAC 252 connection to Supercap power supply NAC 252 to stereo power amplifiers SUPERCAP mains input additional signal output to mono or dual mono power amplifiers Note For best performance the Burndy 5 pin DIN cables should be run as close together as possible.
  • Page 13: 10 Nac 282

    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 supplied. Diagram 11.3 and 11.4 illustrate a variety of NAC 282 power supply options.
  • Page 14 NAC 282 10.4 av integration (unity gain) 10.8 switch-on The NAC 282 unity gain function enables an audio-visual After switch-on, via the NAPSC and power supply, or power processor to be integrated such that the processor’s amplifier, power button, the NAC 282 will remain muted for volume control takes over command of signals connected 30 seconds while control systems and circuits stabilise.
  • Page 15 Main output level: 0.775V, <50Ω Tape output level: 75mV, 600Ω Auxiliary power outputs: To suit Naim Stageline phono stage, or Headline headphone amplifier. Case size (H x W x D): 87 x 432 x 314mm Mains Supply: 100V. 115V. 230V - 50/60Hz...
  • Page 16 NAC 282 Connections 11.3 NAC 282 connection to Hi-Cap power supply to NAPSC NAC 282 to stereo power amplifiers Interconnect Cables cable direction 4 to 4 pin DIN marker 240° 5 to 5 pin DIN HI-CAP mains input to mono or dual mono power amplifiers additional signal output 11.4 NAC 282 connection to Supercap power supply...
  • Page 17: 12 Nac 202

    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. An optional separate NAPSC supply to provide power to the display and control circuits is also available. Diagram 13.3 illustrates the NAC 202 connected to a Hi-Cap power supply.
  • Page 18 NAC 202 12.4 volume 12.9 display The remote handset volume key provides some alternative The NAC 202 front panel button display can be switched off control characteristics. A quick press and release of a key by pressing the remote handset (in preamplifier mode) disp will adjust by a preset “nudge”.
  • Page 19 NAC 202 Connections 13.1 Front source selectors mute volume Power supply/output option sockets with signal in 6 link and blanking to NAPSC 13.2 Rear ground (alternative) rc5 control in plugs fitted (optional) in 1 in 2 in 3 in 4 in 5 aux 2 to power...
  • Page 20 NAC 202 Connections 13.3 NAC 202 connection to Hi-Cap power supply to NAPSC (optional) NAC 202 Note The NAPSC socket to 4 pin DIN link plug must remain in place if no to stereo power amplifiers NAPSC is used. HI-CAP mains input to mono or dual mono power amplifiers...
  • Page 21: 14 Nac 112

    The NAC 112 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 15.2 illustrates the NAC 112 connected to a Flatcap 2 power supply.
  • Page 22 NAC 112 14.9 switch-on After switch-on, via the power supply or power amplifier power button, the NAC 112 will remain muted for 15 seconds while control systems and circuits stabilise. 14.10 remote control The NARCOM 3 remote handset supplied with the NAC 112 duplicates all configuration options.
  • Page 23 NAC 112 Connections Power supply/output option socket 15.1 NAC 112 rear with link and blanking plug fitted tape tuner to stereo power amplifiers with aux 2 aux 1 preamplifier power supply output Note TAPE, AV & AUX 1 CD, TUNER & AUX The NAC 112 AUX 2 input is provided with two sockets.
  • Page 24 Flash Handset 16.1 Introduction selected page is shown in the top right corner of the Flash is factory pre-programmed to operate any Naim display. Details of the master key functions within each preamplifier or cd player, the NAT 05 tuner and AV2 page is described in the following paragraphs: audio-visual processor.
  • Page 25 Flash Handset 16.3 preamplifier programming TUN (tuner mode) Page 1 of 1 (preamplifier) mode the prog key function (display Depending on the operational mode selected, Page One) varies depending upon the specific preamplifier adjusts the tuning frequency upwards model in use. Firstly, the NAC 112 incorporates a (frequency mode), searches for stations up programmable volume control system that enables different...
  • Page 26: 17 Narcom 3 Handset

    Narcom 3 is a multi-functional remote control handset station frequencies to be assigned to preset memory. To designed to be used with Naim Audio CD players, assign a station to a preset, first tune manually by keying integrated amplifiers, preamplifiers and preset tuners.
  • Page 27 Narcom 3 Handset centre as it reaches the mid point. Balance keys will select tuner presets or tuner frequency. In record centring is indicated by a flashing volume mode the numeric keys will switch between record inputs control indicator. To resume adjustment once on appropriately equipped preamplifiers.
  • Page 28 Narcom 3 Handset P —— programming mode and its display will show . Press the desired preset number from the numeric keypad. Exit the program mode by pressing and holding the prog key. A space indicates that there is no more memory available. disp: preamp mode the...
  • Page 29 Declaration of conformity to appropriate standards Manufacturer Naim Audio Limited, Southampton Road, Salisbury, England, SP1 2LN Products NAC 552, NAC 552PS, NAC 252, NAC 282, NAC 202, HI-CAP , NAC 112, SUPERCAP , HI-CAP , FLATCAP 2, NAPSC Safety HD 195-S6...
  • Page 30 Part No. OWMPR 12-001-0032 Naim Audio Limited, Southampton Road, Salisbury, England SP1 2LN Telephone: +44 (0) 1722 332266 Fax: +44 (0) 1722 412034 www.naim-audio.com Drawing No. NA201001-400...

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