NAIM NAIT 5si Reference 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.

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.

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 NAIT 5si

Page 1: ...R E F E R E N C E M A N U A L I N T E G R A T E D A M P L I F I E R S S U P E R N A I T 2 N A I T X S 2 N A I T 5 s i ENGLISH ...

Page 2: ...2 Introduction Installation and Connection 10 9 1 Mains Power Connection 10 9 2 Signal Inputs 10 9 3 Speaker Outputs 10 9 4 av and hdd Outputs 10 9 5 Headphone Output 10 9 6 AV Bypass 11 9 7 Other Signal Inputs and Outputs 11 9 8 Power Supply Upgrades 11 9 9 General Connections Notes 11 9 10 External Control and Interface 11 10 Controls and Connections 12 10 1 Front Panel Controls 12 10 2 Rear Pan...

Page 3: ...e Do not wire voltage dependent resistors or noise suppressors into mains plugs They degrade the mains supply and the sound 2 1 Mains Plug Wiring In some territories a mains plug may need to be fitted to the supplied mains lead As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals in the plug proceed as follows The wire coloured GREEN...

Page 4: ...stances 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 so...

Page 5: ... socket on the rear panel The aux 2 DIN socket also carries a power supply output intended to power a Naim Stageline or SuperLine phono preamplifier Note For optimum sound quality DIN sockets should be used in preference to RCA phono sockets Note Where an input has DIN and phono socket options only one should be connected at any one time Always use high quality interconnect cables to connect sourc...

Page 6: ...iers that require an external power supply The Supernait 2 DIN bi amp output socket provides a preamp output signal that enables a second power amplifier to be used in conjunction with the Supernait 2 power amplifier The RCA phono sub out sockets provide a stereo output intended for connection to an active subwoofer The output signal is a duplicate of the preamplifier output No low pass filtering ...

Page 7: ...ink plug fitted av in out hdd in out tuner in cd in ch1 ve nc nc ch2 cd and tuner Inputs ch1 ve ch1 out ch2 out ch2 av and hdd Inputs ve ve ve ch1 ch2 aux 2 input sub out aux 1 in RCA av in RCA hdd in RCA tuner in RCA cd in RCA bi ampout Note The link plug should be removed only if a power supply upgrade is to be used or an alternative preamplifier is to use the Supernait 2 power amplifier section...

Page 8: ...fuse power mains input and fuse power 6 System Connections The following three diagrams illustrate examples of Supernait 2 system connections Many other systems using external power supplies or additional power amplifiers are possible Contact your Naim retailer or local distributor for more information Note The Supernait 2 should remain connected to mains power at all times Note The Supernait 2 sh...

Page 9: ...upply and NAP 200 Power Amplifier cable direction marker 4 to 4 pin DIN Interconnect Cables 240 5 to 5 pin DIN mains input and fuse power mains input and fuse mains input and fuse Note The Supernait 2 should remain connected to mains power at all times ...

Page 10: ...de automatically if no control commands are received for five minutes Note In a few cases some further equipment configuration may be required for auto switching to operate correctly Please contact your retailer or local distributor for advice 7 2 Handset Volume and Balance Control The remote handset volume and balance keys provide some alternative control characteristics A short press and release...

Page 11: ...Ω to 1kΩ headphones Auxiliary Power Output 24V on aux 2 in pwr for Naim phono stages Fixed Line Level Outputs av out and hdd out Variable Line Level Outputs sub out bi amp out and pre amp out Quiescent Consumption 37VA Dimensions H x W x D 87 x 432 x 314mm Weight 13 9kg Mains Supply 100V 115V or 230V 50 60Hz For full technical specifications please visit our website http www naimaudio com hifi pro...

Page 12: ... labelled cd tuner hdd hard disk drive av aux 1 and aux 2 The cd tuner hdd and av input buttons correspond to parallel DIN and RCA phono input sockets on the rear panel while the aux 1 input button corresponds only to a pair of RCA phono sockets Note The hdd and av sockets carry both inputs and outputs See Section 9 4 for more information The aux 2 input button corresponds to a DIN input socket on...

Page 13: ... amp in socket carries a 24V DC power supply output intended for Naim preamplifiers that require an external power supply The RCA phono sub out sockets provide a stereo output intended for connection to an active subwoofer The output signal is a duplicate of the preamplifier output No low pass filtering is applied Diagrams 11 1 and 11 2 illustrate some applications of the Nait XS 2 preamp out and ...

Page 14: ... cd and tuner Inputs ch1 ve ch1 out ch2 out ch2 av and hdd Inputs ve ve ve ch1 ch2 aux 2 input 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 2 power amplifier section or an alternative power amplifier is to use the Nait XS 2 preamplifier section It should remain fitted in all other circumstances Note The Nait XS ...

Page 15: ... information mains input and fuse power 11 1 Nait XS 2 with FlatCap XS Power Supply mains input and fuse Note The Nait XS 2 should remain connected to mains power at all times power mains input and fuse cable direction marker 4 to 4 pin DIN Interconnect Cables 240 5 to 5 pin DIN 11 2 Nait XS 2 with Hi Cap Power Supply and NAP 200 Power Amplifier mains input and fuse power mains input and fuse Note...

Page 16: ...commands are received for five minutes Note In a few cases some further equipment configuration may be required for auto switching to operate correctly Please contact your retailer or local distributor for advice 12 2 Handset Volume Control The remote handset volume keys provide some alternative control characteristics A short press and release of a key will adjust by a preset nudge while pressing...

Page 17: ... for 16Ω to 1kΩ headphones Auxiliary Power Output 24V on aux 2 in pwr for Naim phono stages Fixed Line Level Outputs av out and hdd out Variable Line Level Outputs sub out and pre amp out Quiescent Consumption 16VA Dimensions H x W x D 70 x 432 x 301mm Weight 8 4kg Mains Supply 100V 115V or 230V 50 60Hz For full technical specifications please visit our website http www naimaudio com hifi products...

Page 18: ...s These should be used in preference to the RCA phono sockets if practical Do not connect both the DIN and RCA phono sockets of one input simultaneously 14 3 Speaker Outputs A stereo set of speaker connection sockets is provided on the rear panel The sockets can accept standard 4mm plugs but to comply with European legislation the Naim connectors supplied should be used Naim Audio speaker cable wi...

Page 19: ...mains input and fuse tuner input DIN tuner input RCA phono CD input DIN CD input RCA phono hdd in av in left speaker right speaker hdd out ch1 ve nc nc ch2 cd and tuner Inputs Note The Nait 5si features various technologies to reduce microphonic effects Some movement of the board and sockets when connecting and disconnecting cables is normal ...

Page 20: ...elect AV Bypass first switch the Nait 5si into program mode by pressing and holding the handset prog key with the handset in preamplifier mode The front panel av button will illuminate if AV Bypass is selected If it is not enabled it can be switched on by pressing av button twice The Nait 5si volume control indicator will extinguish when AV Bypass mode is engaged and the av input is selected Remot...

Page 21: ...V to 7 0V Headphones Front panel 6 3mm 1 4 jack socket suitable for 16Ω to 1kΩ headphones Fixed Line Level Outputs hdd out Quiescent Consumption 19VA Dimensions H x W x D 70 x 432 x 301mm Weight 6 8kg Mains Supply 100V 115V or 230V 50 60Hz For full technical specifications please visit our website http www naimaudio com hifi products nait 5si ...

Page 22: ... Soft Keys System Component Keys switch the operation of the Soft Keys into modes appropriate to each system component CD player preamplifier etc Global Keys operate specific component functions regardless of the System Component Key setting and are available at all times 18 1 1 Integrated Amplifier Global Keys operate as follows vol 5 6 Adjusts the volume and the volume control position mute Redu...

Page 23: ...e connected to a mains socket outlet with a protective earthing connection Warning batteries installed shall not be exposed to excessive heat such as sunshine fire or the like Where the mains plug or an appliance coupler is used as the disconnect device the disconnect device shall remain readily operable To disconnect the equipment from the mains remove the mains plug from the mains outlet The fol...

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