owners manuaL P REAM P L I F I ERS I N T E G RA T E D AM P L I F I ERS , P OWER AM P L I F I ERS EN G L I S H D EU T S C H F RAN Ç A I S I T A L I ANO
Cont ent s Page Section SAFETY INSTRUCTIONS E1 1 In order to comply with current European safety regulations it is essential that the Naim loudspeaker connectors supplied with amplifiers and loudspeakers are used.
I ntrod u c tio n Naim Audio products are conceived with performance as the top priority. Careful installation will help ensure that their full potential 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 Con n ect ions It is important for both safety and performance that the standard cables supplied are not modified. 1.
I ntrod u c tio n 3 Gen er al Instal l a ti o n Naim equipment is designed to offer the finest In some circumstances, depending on where you live performance possible avoiding compromise and the earthing arrangements in your home, you may wherever practical. This can lead to circumstances experience radio frequency interference. Controls on that may be unfamiliar.
N A C 552 P rea mp lif ier 4 NAC 5 5 2 Intro d ucti o n a nd Instal l a ti on 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.
N A C 552 P rea mp lif ier To exit from program mode press and hold the prog key 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.
N A C 552 P rea mp lif ier 5. 3 NA C 5 5 2 C o nne c te d to NA C 5 5 2 P S Note: For best performance the Burndy and 5 pin DIN cables should be run as close together as possible. additional signal output to mono or dual mono power amplifiers mains input and fuse 6 N AC 5 5 2 /NAC 552PS Speci fi ca ti on Input Sensitivities: 75mV, 47kΩ Overload Margins: 40dB (all inputs all audio frequencies). Main Output Level: 0.
N A C 252 P rea mp lif ier 7 NAC 2 5 2 Intro d ucti o n a nd Instal l a ti on 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 stand intended for the purpose. Do not stand either directly on top of another item of equipment.
N A C 252 P rea mp lif ier 8. 2 NAC 2 5 2 R e ar in 1 cd in 2 tuner Inputs 1, 2 & 6 nc nc ch1 ch2 in 3 tape in 5 in 6 aux 1 aux 2 in 4 av -ve cd/RCA Phono ch1(L) ch2(R) signal in 6 (alternative) ground Inputs 3, 4 & 5 ch1 ch2 supercap supercap ch1 (out) ch2 (out) -ve Input 6 (alternative) +ve ch1 +ve ch2 aux 2/RCA Phono ch1(L) ch2(R) RC5 in RS232 interface Note: The NAC 252 AUX 2 input is provided with two sockets.
N A C 282 P rea mp lif ier 1 0 NAC 2 8 2 Introd ucti o n a nd Insta l l a ti on 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.
N A C 282 P rea mp lif ier 11 .
N A C 282 P rea mp lif ier 11 .4 NAC 2 8 2 C o nne c te d to H i- C a p a n d NAP S C to stereo power amplifiers cable direction marker mains input and fuse additional signal output to mono or dual mono power amplifiers Note: Alternative upgrade schemes and product combinations may be feasible. Contact your local representative or Naim Audio directly for further information.
N A C 202 P rea mp lif ier 1 3 NAC 2 0 2 Introd ucti o n a nd Insta l l a ti on 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.
N A C 202 P rea mp lif ier 14.
N A C 152 XS P rea mp li fi er 1 6 NAC 1 5 2 XS Intro d ucti o n a nd I ns ta l l a ti on The NAC 152 XS 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 152 XS connected to a FlatCap XS power supply. The preamplifier and any power supply should be installed on a dedicated equipment stand intended for the purpose.
N A C 152 XS P rea mp li fi er 17 NAC 152 XS Controls and Connections 17.1 NAC 1 5 2 X S F ro nt front panel input socket volume hdd in phono source selection to power amplifier with internal power supply 17.
NA C 152 XS P rea mp li fi er 17.3 NAC 1 5 2 X S C o nne c te d to F la t C a p X S P ow er S u p p l y ( s t a g e 1 u p g r a d e) to power amplifier with internal power supply power switch mains input and fuse for preamplifier stage 2 upgrade, CD5 XS, Headline or phono stage. Additional interconnects required.
N A C 152 XS P rea mp li fi er 17.4 NAC 152 XS Connected to Hi-Cap and FlatCap XS Power Supplies (stage 2 upgrade) to stereo power amplifiers mains input and fuse power switch additional signal output to mono or dual mono power amplifiers mains input and fuse for CD5 XS, Headline or phono stage. Additional interconnects required.
SU P E R N A IT Integr a ted Ampl i fi er 1 9 SU P ERNAIT Intro d ucti o n a nd Ins ta l l a ti on 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.
SU P E R N A IT Integr a ted Ampl i fi er 19.3 Digital Input Assignment The default digital input socket assignment illustrated in A stereo set of speaker connection sockets is provided Table 19.2 may be changed if desired. Each selection on the rear panel. Custom Naim Audio loudspeaker button may be assigned to any one of the four rear panel connectors are supplied to make the connection and in digital input sockets.
SU P E R N A IT Integr a ted Ampl i fi er and external power supply must be switched off when should always be connected regardless of what other connections are made. Switch on the external power equipment is used in conjunction with the amplifier. The supply and then the Supernait when all connections are mains earth only grounds the case and the electrostatic complete. screen within the transformer, and is not connected to the signal negative. In order to avoid hum loops, the signal 19.
SU P E R N A IT Integr a ted Ampl i fi er 20.3 SU P ERNA I T C o nne c te d to H i- C a p P ow er S u p p l y power mains input and fuse cable direction marker Interconnect Cables 4 to 4 pin DIN 240° 5 to 5 pin DIN mains input and fuse 20.
SU P E R N A IT Integr a ted Ampl i fi er 20.5 SU P ERNA I T C o nne c te d to H i- C a p P ow er S u p p l y a n d NAP 2 0 0 P ow er A m p l i fi er mains input and fuse power cable direction marker Interconnect Cables 4 to 4 pin DIN 240° 5 to 5 pin DIN mains input and fuse mains input and fuse 21 SUPERNAI T S p eci f i ca ti on Input Sensitivities: 75mV, 47kΩ Overload Margins: 40dB (all inputs all audio frequencies) Preamp Output Level: 0.
N A I T X S Integr a ted Ampl i fi er 2 2 NAI T XS Introd ucti o n, Instal l a ti on a nd C onnecti ons The NAIT XS 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.
N A I T X S Integr a ted Ampl i fi er Note: The AV Bypass feature must be used with care. It The NAIT XS provides an unfiltered analogue stereo bypasses the NAIT XS volume control leaving any signal subwoofer output via a pair of RCA phono sockets. connected to the av input to be passed to the speakers at full volume. Note: The mute function is disabled when AV Bypass is engaged. 22.6 Aux iliary I nputs and O utputs Note: The subwoofer output is a duplicate of the preamplifier output.
N A I T X S Integr a ted Ampl i fi er 23.2 NAIT XS R e ar subwoofer out remote in power mains RS232 left input interface speaker and fuse cd and tuner Inputs ch1 ch2 hdd and av Inputs/outputs nc nc ch1 (out) ch2 (out) ch1 ch2 -ve signal ground right speaker -ve aux 2 input +ve ch1 +ve ch2 -ve AV bypass switch aux 1 input av in power amp in and preamp out. Link plug fitted.
N A I T X S Integr a ted Ampl i fi er 23.4 NAIT XS C o nne c te d to H i- C ap P ow er S u p p l y a n d NAP 2 0 0 P ow er A m p l i f i er power mains input and fuse Note: The NAIT XS should remain connected to mains power at all times.
NA I T 5i I ntegr a ted Ampl i fi er 2 5 NAI T 5 i Introd ucti o n a nd Instal l a ti on 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 down before switching on.
N A I T 5i Integr a ted A mpl i fi er 26 .2 NA IT 5i R e ar power mains input and fuse left speaker tuner input (RCA Phono) tuner input (DIN) right speaker Note: The Nait 5i features various technologies to reduce microphonic effects. Some movement of the board and sockets when connecting and disconnecting cables is normal.
Pre am plif ier a nd Integ rat ed Ampl i fi er Operat i o n 2 8 P r eamplifi er a nd Inte g ra te d A m p l i f i er O p er a ti on 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 28.10 sets out some variations in user interface between products.
Pre am plif ier a nd Integ rat ed Ampl i fi er Operat i o n Note: The Unity Gain feature must be used with care. It Note: The NAC 152 XS, Nait XS and Nait 5i do not effectively by-passes the preamplifier volume and balance incorporate any front panel tape monitor facility. controls leaving any signal connected to a Unity Gain input to be passed to the power amplifier and speakers at 2 8 . 5 Di s p l a y full volume.
Pre am plif ier a nd Integ rat ed Ampl i fi er Operat i o n 28.9 Fault Conditio ns Some amplifiers will indicate problems by flashing front panel button indicators. The following diagram tabulates the fault indication for each product.
R- c om R emo te H a nds et 2 9 R-com Remo te H and set 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. Replace the end cover.
N A R C O M 4 R emo te Hand set 3 0 NAR COM 4 Re mote H and set The NARCOM 4 remote handset is supplied with the NAC 552, NAC 252, NAC 282, NAC 202, NAC 152 XS, Supernait, Nait XS 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. 30.
N A P 500 P o wer A mp li fi er 3 1 In st allat io n a nd Op era ti o n 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.
N A P 500 P o wer A mp li fi er 32 NAP 500 Connections 32.
N A P 300 P o wer A mp li fi er 3 4 In st allat io n a nd Op era ti o n 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.
N A P 300 P o wer A mp li fi er 35 NAP 300 Connections 35.
N A P 250 P o wer A mp li fi er 37 In st allat ion a nd Op era ti o n 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. 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.
N A P V 1 4 5 P o wer A mpl i fi er 4 0 In st allat io n a nd Op era ti o n 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.
NA P 200 P o wer Am p li fi er 43 In st allat io n a nd Opera ti o n 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.
N A P 155 XS P o wer A mpl i fi er 4 6 In st allat io n a nd Op era ti o n The NAP 155 XS 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 155 XS. The NAP 155 XS power switch is located on the rear panel. The NAP 155 XS can provide power for an appropriate Naim Audio preamplifier.
NA PV 175 P o wer Am pl i fi er 49 In st allat io n a nd Op era ti o n 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.
D e c la r a tio ns o f Co nf or mi t y 5 2 Declar at io n of Conformi ty Manufacturer N aim Audio Limited, Southampton Road, Salisbury, England, SP1 2LN Products P reamplifiers - NAC 552, NAC 252, NAC 282, NAC 202, NAC 152 XS Integrated Amplifiers - SuperNait, NAIT XS, NAIT 5i ower Amplifiers - NAP 500/NAP 500PS, NAP 300/NAP 300PS, NAP 250, P NAPV 145, NAP 200, NAP 155 XS, NAPV 175, Safety EN 60065 Safety EN 60065 - Audio video and similar electronic apparatus. Safety requirements.
