Naim NAC 122X owners manual

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