Naim Audio StageLine - Manual (Page 4)

2
distortion, and it may be necessary to take
account of transformer hum when siting your
equipment.
Transformer hum is not transmitted through the
speakers and has no effect on the performance
of the system; however, a separate mains
circuit may reduce it. Such a circuit (ideally
with a 30 or 45 Amp rating) will also generally
improve system performance. Advice on the
installation of a separate mains circuit should
be sought from a qualified electrician.
Use only the mains leads and plugs supplied or
the Naim Power-Line mains cable.
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 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. For complete protection all
mains plugs and any aerial cables should be
disconnected when not in use.
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