NAIM PREAMPLIFIERS Manual Download Page 4

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3  General  Installation

naim equipment is designed to offer the finest 
performance possible avoiding compromise 
wherever practical. This can lead to circumstances 
that may be unfamiliar. The notes that follow contain 
advice specifically related to naim equipment 
as well as more general warnings about the use 
of domestic audio products. Please read them 
carefully.

3.1  siting  The  equipment

In order to reduce the risk of hum audible from the 
loudspeakers, power supplies and power amplifiers 
should be located a reasonable distance away from 
other equipment. The maximum separation distance for 
connected equipment is that allowed by the standard 
interconnect lead.

Some Naim equipment is extremely heavy. Check the 
weight of the equipment prior to lifting and if necessary 
use more than one person so that it can be moved safely. 
Ensure that your equipment rack or table can easily 
support the weight and is stable.

Some speakers and stands are intended to be used with 
floor spikes fitted. Care should be taken when siting and 
moving them to avoid personal injury or damage to 
cables and surfaces. Floor protectors are available from 
your local dealer or distributor to protect non carpeted 
floors.

3.2  switching  on

Source components and power supplies should be 
switched on before the power amplifiers. Always switch 
amplifiers off and wait a minute before connecting or 
disconnecting any leads. Always use the power switch on 
the product rather than a mains outlet switch.

A “thump” may be heard from the loudspeakers as power 
amplifiers are switched on. This is normal, will not cause 
any loudspeaker damage and does not point to any fault 
or problem. A mild “pop” may also be heard shortly after 
equipment is switched off.

3.3  running  In

Naim equipment takes a considerable time to run in 
before it performs at its best. The duration varies, but 
under some conditions the sound may continue to 
improve for over a month. Better and more consistent 
performance will be achieved if the system is left switched 
on for long periods. It is worth remembering however that 
equipment left connected to the mains can be damaged 
by lightning.

3.4  radio  Interference

In some circumstances, depending on where you live 
and the earthing arrangements in your home, you may 
experience radio frequency interference. Controls on 
broadcasting in some territories allow very high levels of 
radio frequency radiation and both the choice and exact 
siting of equipment may be critical. Susceptibility to radio 
frequency interference is related to the wide internal 
bandwidth necessary for high sound quality. 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 
radio interference Naim equipment may be unsuitable.

3.5  Lightning  Precautions

Your Naim hi-fi system can be damaged by lightning 
and should be turned off and disconnected from the 
mains when there is risk of lightning strike. For complete 
protection all mains plugs and any aerial cables should be 
disconnected when not in use.

3.6  Problems?

Consumer protection varies from country to country. In 
most territories a retailer must be prepared to take back 
any equipment he has sold if it cannot be made to work 
satisfactorily. A problem may be due to a fault in the 
system or its installation so it is essential to make full use of 
your dealer’s diagnostic skills. Please contact your local 
distributor, or Naim Audio directly, if any difficulties cannot 
be resolved.

Some Naim equipment is made in special versions for 
different territories and this makes it impracticable to 
arrange international guarantees. Please establish the 
local guarantee arrangements with your retailer. Contact 
Naim Audio directly for help and advice if necessary.

3.7  service  and  updates

It is essential that repairs and updates are only carried 
out by an authorised Naim retailer or at the factory by 
Naim itself. Many components are custom made, tested 
or matched and appropriate replacements are often 
unobtainable from other sources.

Direct contact to Naim for service or update information 
should be made initially through Customer Services:

Tel: 

+44 (0)1722 426600

 

Email: 

[email protected]

Please quote the product serial number (found on its rear 
panel) in all correspondence.

Introduction

Summary of Contents for PREAMPLIFIERS

Page 1: ...o w n e r s m a n u a L 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 A I S I T A L I AN 0...

Page 2: ...Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult your Naim retailer or a...

Page 3: ...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 safe...

Page 4: ...uipment left connected to the mains can be damaged by lightning 3 4 Radio Interference In some circumstances depending on where you live and the earthing arrangements in your home you may experience r...

Page 5: ...for example to be listened to whilst the output from another say the tuner is simultaneously selected for recording Note It is possible to lock the record controls and prevent accidental de selection...

Page 6: ...RCA Phono pair Not assigned 5 NAC 552 Controls and Connections 5 1 NAC 552 Front volume balance mute mono source bank record bank source and record selection 5 2 NAC 552 Rear in 1 in 2 in 3 in 4 in 5...

Page 7: ...itional signal output cable direction marker NAC 552 Burndy 240 5 to 5 pin DIN Interconnect Cables 6 NAC 552 NAC 552PS Specification Input Sensitivities 75mV 47k Overload Margins 40dB all inputs all a...

Page 8: ...t the output from another say the tuner is simultaneously selected for recording Note It is possible to lock the record controls and prevent accidental de selection during recording Record lock is swi...

Page 9: ...corporates an appropriate DC power supply The two sockets must not be used simultaneously Note The RS232 comms interface is an optional upgrade It can be specified at time of order or fitted retrospec...

Page 10: ...aneously selected for recording Note It is possible to lock the record controls and prevent accidental de selection during recording Record lock is switched on or off by depressing the source mono but...

Page 11: ...upply The two sockets must 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 representa...

Page 12: ...onnect Cables 12 NAC 282 Specification Input Sensitivities 75mV 47k Overload Margins 40dB all inputs all audio frequencies Main Output Level 0 775V 50 Tape Output Level 75mV 600 Auxiliary Power Output...

Page 13: ...e of the DIN sockets Input assignment setup is accessed through the NAC 202 program mode To switch into or exit from program mode press and hold the prog key on the remote handset in preamplifier mode...

Page 14: ...time of order or fitted retrospectively Contact your local representative or Naim Audio directly for further information to NAPSC power supply output option sockets with link and blanking plugs fitte...

Page 15: ...ug will return the amplifier to the previously selected input If a different input is selected while a plug is inserted removal of the plug will not cause the input to change 16 2 Audio Outputs The NA...

Page 16: ...ted retrospectively Contact your local representative or Naim Audio directly for further information signal ground cd in tuner in hdd in aux1 in av in aux 2 in power out cover fitted power supply upgr...

Page 17: ...pply stage 1 upgrade mains input and fuse power switch for preamplifier stage 2 upgrade CD5 XS Headline or phono stage Additional interconnects required to power amplifier with internal power supply c...

Page 18: ...ication Input Sensitivities 130mV 47k Overload Margins 35dB all inputs all audio frequencies Main Output Level 0 775V 50 Line Output Level 130mV 600 Auxiliary Power Outputs For Naim phono stage Dimens...

Page 19: ...IN input socket on the rear panel respectively Note The aux2 DIN input socket carries a power supply output voltage appropriate for a Naim phono preamplifier 19 1 2 Digital Inputs The Supernait additi...

Page 20: ...stereo set of speaker connection sockets is provided on the rear panel Custom Naim Audio loudspeaker connectors are supplied to make the connection and in order to comply with current European safety...

Page 21: ...e switched off when connections are made Switch on the external power supply and then the Supernait when all connections are complete 19 9 General Connections Notes The Supernait negative input and ou...

Page 22: ...mains input and fuse 20 4 SUPERNAIT Connected to NAP 200 Power Amplifier mains input and fuse cable direction marker 4 to 4 pin DIN Interconnect Cables 240 5 to 5 pin DIN cable direction marker Interc...

Page 23: ...ifier 21 SUPERNAIT Specification Input Sensitivities 75mV 47k Overload Margins 40dB all inputs all audio frequencies Preamp Output Level 0 775V 50 Tape Output Level 75mV 600 Power Output Continuous 80...

Page 24: ...itch the amplifier to that input Removal of the plug will return the amplifier to the previously selected input If a different input is selected while a plug is inserted removal of the plug will not c...

Page 25: ...output via a pair of RCA phono sockets Note The subwoofer output is a duplicate of the preamplifier output No low pass filtering is applied 22 7 Power Supply Upgrades The NAIT XS preamplifier section...

Page 26: ...cal representative or Naim directly for further information Note The link plug should be removed only if a power supply upgrade is to be used an alternative preamplifier is to use the NAIT XS power am...

Page 27: ...e The NAIT XS should remain connected to mains power at all times 24 NAIT XS Specification Input Sensitivities 130mV 47k Overload Margins 34dB all inputs all audio frequencies Preamp Output Level 0 77...

Page 28: ...he DIN and RCA Phono sockets of one input simultaneously A 3 5mm stereo Jack input socket suitable for an iPod or alternative portable music player on is also provided on the Nait 5i front panel Inser...

Page 29: ...el 225mV 100 Power Output Continuous 50 Watts per channel into 8 Ohms Quiescent Consumption 10VA Dimensions H x W x D 70 x 432 x 301mm Weight 6 4kg Mains Supply 100 120V or 220 240V 50 60Hz left speak...

Page 30: ...elect through each possible combination of cd av hdd and tuner inputs and auto switching disabled all indicators off When the desired inputs selected for auto switching are indicated stop pressing the...

Page 31: ...d sections mono can be selected independently for source and record Mono can also be selected from the handset Note The NAC 202 NAC 152 XS Supernait Nait XS and Nait 5i do not incorporate any mono fac...

Page 32: ...old disp handset key s NARCOM 4 record mute source mute front panel button Nait XS hold prog pre 4 mute rear panel hold disp handset key s NARCOM 4 mute switch front panel button Nait 5i hold prog pre...

Page 33: ...te To switch R com back into CD player mode either press the pre or tun key again In default mode the R com keys have the following functions disp Scrolls through the display options of track time and...

Page 34: ...times Preamplifier and Integrated Amplifier Global Keys operate as follows vol 5 6 Adjusts the preamplifier volume and the volume control position mute Reduces the preamplifier volume to zero A secon...

Page 35: ...wn to avoid surprises when it comes back on OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE V...

Page 36: ...3 NAP 500 NAP 500PS Specification Power Output 140 Watts per channel 8 700 VA Transient Quiescent Consumption 60VA Voltage Gain 29dB Input Impedance 18k Frequency Response 3dB 1 5Hz and 100kHz Dimensi...

Page 37: ...BE REDUCED 34 Installation and Operation 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...

Page 38: ...e nc nc ch2 ve 36 NAP 300 NAP 300PS Specification Power Output 90 Watts per channel 8 500 VA Transient Quiescent Consumption 27VA Voltage Gain 29dB Input Impedance 18k Frequency Response 3dB 2Hz and 7...

Page 39: ...it Make sure that the surface it is to be placed on can support the full weight OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY...

Page 40: ...145 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 the full weight OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS P...

Page 41: ...n when lifting or moving it Make sure that the surface it is to be placed on can support its full weight OPERATION OF THE AMPLIFIER S THERMAL PROTECTION SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME LEV...

Page 42: ...GED USE AT TOO HIGH A VOLUME LEVEL YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE CASE THE VOLUME SHOULD BE REDUCED 46 3 Loudspeaker Cable and Connectors Only Naim Audio speaker cable should be used...

Page 43: ...g on the NAPV 175 The power switch is located on the rear panel 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 th...

Page 44: ...Naim Audio Limited Southampton Road Salisbury England SP1 2LN Products Preamplifiers NAC 552 NAC 252 NAC 282 NAC 202 NAC 152 XS Integrated Amplifiers SuperNait NAIT XS NAIT 5i Power Amplifiers NAP 500...

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