Bedienungsanleitung Naim NAP 155 XS (Seite 3 von 16) (Englisch)

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Introduction

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 all power amplifiers. It begins

with some general installation notes. Product specific information begins in Section 4.

1. Connections

It is important for both safety and performance that the

standard cables supplied are not modied.

1.1 Interconnect Cables

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. Naim Hi-Line interconnect cable will provide

the best results.

Interconnect plugs and sockets should be kept clean

and free from corrosion. The easiest way to clean them

is to switch o 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 lm they deposit may

degrade the sound.

1.2 Loudspeaker Cables

Loudspeaker cables are vitally important. They should

each be at least 3.5 metres long and of equal length. The

recommended maximum is normally 20 metres although

longer cables may be viable with some Naim ampliers.

Some Naim ampliers are designed only to work with Naim

loudspeaker cable and using alternatives may degrade the

performance or even damage the amplier. Other Naim

ampliers can be used with any high quality loudspeaker

cable although we recommend that Naim loudspeaker cable

is used. Naim loudspeaker cable is directional and should

be oriented so that the printed arrow points towards the

speakers. The Naim loudspeaker connectors supplied are

designed to comply with European safety legislation and

must be used.

Contact your local retailer or distributor for further advice

on loudspeaker cables and connectors.

2. Mains Power

Use only the mains leads and plugs supplied or the Naim

PowerLine mains cable.

Where fused plugs are used 13 amp fuses should be tted.

Fuses of a lower rating will fail after a period of use. 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 tted 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-AND-YELLOW must be connected

to the terminal in the plug marked by the letter E or by

the safety earth symbol or coloured GREEN or GREEN and

YELLOW.

The wire coloured BLUE must be connected to the terminal

in the plug marked with the letter N or coloured BLACK.

The wire coloured BROWN must be connected to the

terminal in the plug marked with the letter L or coloured

RED.

2.2 Equipment Fuses

Mains powered Naim Audio equipment is tted with a mains

fuse on the rear panel adjacent to the mains input socket.

Replace it if necessary only with the spare fuse supplied or

with an identical fuse. Repeated failure of the fuse points to

a fault that should be investigated by your retailer or Naim

itself.

2.3 Non-rewirable Mains Plugs

If a non-rewirable plug is cut from a mains lead (for

whatever purpose) the plug MUST be disposed of in a way

to render it totally useless. Considerable shock hazard exists

if the cut-o plug is inserted into a mains outlet.

2.4 Mains Circuits and Cables

A hi- system usually shares a mains circuit with other

household equipment some of which can cause distortion

of the mains waveform. This distortion can in turn lead

to mechanical hum from mains transformers. Some Naim

transformers are large in size, making them relatively

sensitive to such 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 eect 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 qualied

electrician.

Note: Please read

the Statutory Safety

Warnings found at the

end of this manual.

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