Bedienungsanleitung NAD T 754 (Seite 14 von 32) (Englisch)

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SETTING UP THE T 754

Before you make the first connection to your T 754, you should have the arrangement of your listening room/

home theater components and furniture mapped out, at least initially. Unfortunately, a discussion of the vital

questions of loudspeaker placement and listening/viewing positions is beyond our scope here. Suffice it to

say that these two questions will influence your system's ultimate performance every bit as powerfully as

your selection of electronics and speakers. Your NAD audio specialist dealer will be happy to advise you, and

to recommend reference materials.

NOTE: You will need the HTR 2 remote handset to configure your T 754. See “Using the HTR 2 Remote”,

below.

Hum and noise sometimes prove a challenge in complex, multichannel audio systems. Note these consider-

ations to help prevent hum and noise problems:

• Power all your system's audio component from AC outlets originating from the same circuit of your house

wiring. As far as possible, power all audio components from the same outlet, or adjacent outlets on the

same circuit. It may be useful to power video displays (and computers!) from outlets on another circuit,

especially if that circuit is supplied from the other "leg" of the house wiring.

• Do not bundle analog audio cables with AC power cables, or with coaxial digital-audio cables. It is best

if they cross at right angles if they must be in close proximity.

• Employ high-quality, well-shielded audio cable throughout, and ensure that all connections are secure.

• A pencil-eraser can be used to burnish copper- and gold-plated contacts to ensure good, low-resistance

contact; specialized contact-cleaners can also be useful. Avoid unnecessary unplugging and re-plugging,

since the gold (or copper) contact plating of typical cable connectors, even very high-quality ones, is very

thin and easily worn.

Track down hum/noise problems one component at a time, working backwards from the receiver. That is:

Connect the speakers to the receiver only, and check for hum. Then connect one component only (a CD

player, for example) alone, with no other components connected and check for hum. Connect additional

components, one at a time, to the receiver and check for hum. At each stage, if hum/noise appears,

examine the audio cabling and AC-power routing of the new component. In some cases, moving the new

component's AC cord to a different outlet, or installing a ground-lift (3-to-2-prong adapter) on its power

cord, will eliminate the hum.

GETTING STGETTING ST

GETTING ST

ARAR

TEDTED

TED

DEALING WITH HUM AND NOISEDEALING WITH HUM AND NOISE

DEALING WITH HUM AND NOISE

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NAD T 754 Seite 14

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