NAC 122X
O W N E R S M A N U A L
N A C 1 2 2 x
E N G L I S H
1 C o n n e c t i o n s
It is important for both safety and performance that the
standard cables supplied are not modified.
1.1 Interconnect Ca b l e s
If options are available with your equipment and
installation, DIN interconnect sockets should be used in
preference to RCA Phono sockets. One end of each Naim
interconnect cable is marked with a band to establish
its correct orientation. The band denotes the end that
connects to the signal source.
Interconnect plugs and sockets should be kept clean
and free from corrosion. The easiest way to clean them
is to switch off the equipment, pull the plugs out of their
sockets, and push them back in again. Contact cleaners
and “enhancers” should not be used as the film they
deposit may degrade the sound.
2 G e n e r a l I n s t a l l a t i o n
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.
2.1 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.
2.2 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.
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
the NAC 122x Preamplifier. It begins with some general installation notes. Product
specific information begins in Section 3.
2.3 Running In
Naim equipment takes a considerable time to run in
before it performs at its best. The duration varies, but
under some conditions it 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.
2.4 Radio Interference
In some circumstances, depending on where you live
and the earthing arrangements in your home, you may
experience radio frequency inter ference. 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.
2.5 Lightning Precauti o n s
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.
2.6 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.
In tr oduction
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