3
2.0 Getting Started
2.1 switching on and off
Source components and power supplies for cd players, tuners, preamplifiers and crossovers should be switched on
before switching on the amplifier(s). Always switch the amplifier(s) off and wait about a minute for its power supply
capacitors to discharge before connecting or disconnecting any leads. Always use the power switch on the product
rather than a mains outlet switch.
2.2
running in
Your Naim equipment will take a considerable time to run-in before it performs at its best. The duration varies, but
under some conditions you will find that the sound continues to improve for as much as five weeks. Better and more
consistent performance will be achieved if the system is left switched on for long periods. It is worth remembering
however that all electronic equipment can be damaged by lightning. Please read the warnings section.
2.3
mains supply
Where fused plugs are used 13 amp fuses should be fitted. Fuses of a lower rating will fail after a period of use. A
hi-fi system usually shares a mains circuit with other household equipment some of which can cause distortion of
the mains waveform. In some Naim equipment such distortion can lead to a mechanical hum from the transformers.
The hum is not transmitted through the speakers and has no effect on the performance of the system but is purely
local to the transformer itself. A separate fused mains circuit (like that reserved for electric cookers) may reduce
transformer hum. Such a circuit (ideally with a 30 or 45 Amp rating) will also have a lower impedance, supply
cleaner power, and consequently improve system performance.
Do not wire voltage dependent resistors or noise suppressors into mains plugs. They degrade the mains supply and
the sound.
