Bedienungsanleitung Naim NAP 155 XS (Seite 3 von 44) (Englisch)

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1 Connections

It is important for both safety and performance that

the standard cables supplied are not modified.

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.

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.

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 amplifiers.

Some Naim amplifiers are designed only to work with

Naim loudspeaker cable and using alternatives may

degrade the performance or even damage the amplifier.

Other Naim amplifiers 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

Where fused plugs are used 13 amp fuses should be

fitted. 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 fitted

to the supplied mains lead. As the colours of the wires in

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

preamplifiers, integrated amplifiers and power amplifiers. It begins with some general

installation notes and statutory safety warnings. Product specific information begins in

Section 4.

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 fitted 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-off plug is inserted into a mains outlet.

2.4 Mains Circuits and Cables

A hi-fi 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 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.

Do not substitute alternative mains leads and plugs to

those supplied. They are selected to offer the best possible

performance.

Introduction

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