Naim-audio NAP 500 Manuel d'utilisateur télécharger pdf (Page 11)

12.1 General Connections Notes

The negative input and output connections are all common.

The mains earth should always be connected regardless of

what other equipment is used. This only grounds the case

and the electrostatic screen within the transformer, and is not

connected to the signal negative. In order to avoid hum loops,

the signal negative of the whole system should be connected to

the mains earth (ground) in one place.

12.2 Protection Notes

If the amplifier’s external case reaches 70°C due to prolonged

running at high power, the mains supply will be interrupted and

the illuminated logo will switch off until the amplifier has cooled

down. This may take up to thirty minutes.

12 NAP 200 Installation and Operation

The NAP 200 should be installed on a dedicated equipment stand intended for the purpose

and should be in its final location before connecting cables or switching on. Switch on the

source and preamplifier components, with the volume turned down, before switching on the

NAP 200. The NAP 200 power button is located on the front panel.

The NAP 200 can provide power for an appropriate Naim Audio preamplifier. The power

supply output is carried on the DIN input socket.

The NAP 200 is heavy and care should be taken when lifting or moving it. Make sure that the

surface it is to be placed on can support its full weight.

OPERATION OF THE AMPLIFIER’S THERMAL PROTECTION

SUGGESTS PROLONGED USE AT TOO HIGH A VOLUME

LEVEL. YOUR LOUDSPEAKERS MAY BE AT RISK IF THIS IS THE

CASE. THE VOLUME SHOULD BE REDUCED.

12.3 Loudspeaker Cable and Connectors

Only Naim Audio speaker cable should be used to connect a

loudspeaker to the output of the NAP 200. Custom Naim Audio

loudspeaker connectors are supplied to make the connection and

in order to comply with current European safety regulations these

should always be used.

DAMAGE TO THE AMPLIFIER MAY RESULT IF “HIGH

DEFINITION” CABLE OR ANY OTHER SPECIAL CABLE IS USED

TO CONNECT THE LOUDSPEAKERS.

Ensure when connecting speakers that they are “in phase”. That

is, the positive and negative connection orientation at both the

speaker and amplifier ends of the cable is the same for both

channels.

mains input

and fuse

signal input

ch1(L) & ch2(R) and

preamp power supply

ch2

-ve

ch1

24V

0.3A

Input/Preamp

Power Socket

NAP 200

left

speaker

right

speaker

13 NAP 200 Connections

13.1 NAP 200 Rear

1 2 ... 6 7 8 9 10 11 12 13 14 15

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Naim-audio NAP 500 Manuel d'utilisateur Page 11

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