Bedienungsanleitung NAD C 275 BEE (Seite 8 von 12) (Englisch)

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IDENTIFICATION OF CONTROLS

REAR PANEL

4 BRIDGE MODE: The C 275BEE amplier can be congured to be

MONO (Bridge Mode), more than doubling its output power. This way,

the C 275BEE can be used as part of a high power stereo or home-

theatre system, by connecting additional power ampliers.

In BRIDGED MODE, the C 275BEE will produce approximately 330W into

an 8 ohm loudspeaker. In this mode, the amplier sections will react

as though the speaker impedance has been halved. Low impedance

speakers (under 8 ohms) are not recommended when using Bridge

Mode as these may cause the amplier’s thermal cut-out to operate if

played at high levels.

Set the BRIDGE MODE switch to the “ON” position and connect the

speaker to the terminals marked “L +” and “R+” ensuring that the “L+”

is connected to the “+” terminal of your loudspeaker and the “R+” is

connected to the loudspeaker’s “ - ” terminal. Connect the source to

the INPUT sockets.

The BRIDGE MODE indicator on the front panel will illuminate when the

C 275BEE is in Bridge mode.

NOTE

Do not connect anything to the Right Input socket when Bridge Mode

is selected.

5 SOFT CLIPPING™: Enables NAD’s proprietary Soft Clipping circuitry

on all channels. At [ON] position, Soft Clipping gently limits the output

of the C 275BEE to minimize audible distortion should the amplier be

over-driven. Soft Clipping may simply be left ON at all times to reduce

the likelihood of audible distortion from excessive volume settings.

However, for critical listening and to preserve optimum dynamics, you

may wish to defeat it by setting this switch to “OFF” position.

The SOFT CLIPPING indicator on the front panel will illuminate when the

amplier is in Soft Clipping mode.

6 +12V TRIGGER IN/INPUT SENSE - OFF/AUTO: The OFF/AUTO switch

is applicable for INPUT SENSE only. At AUTO setting, the C275BEE will

instantaneously turn ON from standby mode if it senses any input signal

(approximately above 20mV RMS input) applied through the INPUT

sockets.

In the absence of any input signal at the INPUT sockets and with OFF/

AUTO switch set to AUTO, the C275BEE will switch to standby mode.

Slide the OFF/AUTO switch to OFF setting for the C275BEE to be

normally switched ON (or back to standby mode) using the front panel

STANDBY button.

IMPORTANT NOTES!

• At input sense mode, it will take about 10 minutes for the C275BEE to

go to standby mode when the input signal source is turned OFF or goes

below 20 mV.

• If the C275BEE is switched ON via INPUT SENSE mode, it cannot be

switched back to standby mode via the front panel STANDBY button. The

C275BEE will switch back to standby mode in the same manner it was

activated. For the C275BEE to go to standby mode, the input signal can

be completely turned o or brought down to a level lower than 20mV.

7 +12V TRIGGER INPUT: The +12V Trigger input allows the C 275BEE

to be switched remotely from standby mode to ON and vice-versa

by ancillary equipments such as a preamplier, AV processor, etc. The

controlling device must be equipped with a 12V trigger output to use

this feature.

8 FUSE HOLDER: In the unlikely event a fuse may need to be replaced,

unplug the AC cord from the wall. Then, remove all connections from

the amplier. Use a athead screw driver or similar to open the fuse

holder via the slot indicated. With the screw driver in place, push and

turn counterclockwise to open the fuse holder. Only replace the

fuse with the same type, size, and specication – T10AL 250V for 120V

version or T5AL 250V for 230V version.

IMPORTANT NOTICE

Do not use any substitute fuses of dierent types or with dierent ratings

or values. Failure to observe this precaution may cause damage to the

amplier circuits and may create a re hazard and/or defeat the safety

built into the amplier and may void the warranty.

9 SPEAKERS A, B: The C 275BEE is equipped with two sets of speaker

connectors. Use the Speakers A terminals for the “main” speakers and

use the Speakers B terminals for a second pair, for example, extension

speakers located in another room.

Connect the right speaker to the terminals marked “R +” and “R-” ensuring

that the “R+” is connected to the “+” terminal on your loudspeaker and the

“R-” is connected to the loudspeaker’s “-” terminal. Connect the terminals

marked “L+” and “L-” to the left speaker in the same way.

In Bridge Mode, connect the single speaker to the terminals marked

“R +” and “L+” ensuring that the “L+” is connected to the “+” terminal

on your loudspeaker and the “R+” is connected to the loudspeaker’s “-”

terminal. Refer also to the section above about “BRIDGE MODE.

Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire to

connect loudspeakers to your NAD C 275BEE. The high-current binding

post terminals can be used as a screw terminal for cables terminating in

spade or pin sockets or for cables with bare wire ends.

10 AC MAINS INPUT: The C 275BEE comes supplied with a separate AC Mains

cable. Before connecting the cable to a live wall socket ensure that it is

rmly connected to the C 275BEE’s AC Mains input socket rst. Connect

only to the prescribed AC Outlet, i.e., 120V 60 Hz or 230V 50 Hz. Always

disconnect the AC Mains cable plug from the live wall socket rst, before

disconnecting the cable from the C 275BEE’s Mains input socket.

11 POWER SWITCH: The POWER switch supplies the master AC mains

power for the C 275BEE. Refer to the ATO LOGIC chart below for a better

understanding of the role of the POWER switch when switching ON

or OFF the C 275BEE. If you intend not to use the C 275BEE for long

periods of time (such as when on vacation), switch the POWER switch

to the OFF position.

ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ

NAD C 275 BEE Seite 8

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