NAD T755 Owner's Manual page 11

14 AUDIO PRE-OUT: The Audio PRE- OUT makes it possible to use the
T 755 as a pre-amplifier to external power amplifiers for some or all
channels. Connect FRONT L, FRONT R, SURR R, SURR L, SURR-BL, SURR-
BR and CENTER to the respective channel input of a power amplifier or
an amplifier driving the corresponding applicable speakers.
Unlike the full range channels, there is no power amplifier built-into the
T 755 for a subwoofer. Connect the SUBW 1 or SUBW 2 output or both
to powered ("active") subwoofers or to power amplifier channels driving
a passive system.
NOTE
Never connect both the external amplifier and T 755's speaker outputs to
the same set of speakers.
15 DIGITAL AUDIO IN (OPTICAL 1-3, COAXIAL 1-3): Connect to the
optical or coaxial S/PDIF-format digital output of sources such as CD or
DVD players, HDTV or satellite tuners and other components. Coaxial
and Optical digital input association is configurable via the Setup Menu.
DIGITAL AUDIO OUTPUT (OPTICAL, COAXIAL): Connect the optical
or coaxial digital OUTPUT port to the corresponding S/PDIF digital
input of a compatible device such as CD recorders, receivers, computer
soundcard or other digital processors.
16 HDMI (HDMI 1-3, HDMI MONITOR OUT) : Connect HDMI inputs to
the HDMI OUT connectors of source components such as DVD player or
HDTV satellite/cable box. Connect the HDMI Monitor OUT to a HDTV or
projector with HDMI input.
NOTE
HDMI supports transmission of video signals only. For audio signal, you
may feed into any digital inputs of the T 755 your HDMI source's optical
or coaxial digital audio output and correspondingly assign it as your
particular HDMI input's digital audio source.
WARNING
Before connecting and disconnecting any HDMI cables, both the T 755
and the ancillary source must be powered OFF and unplugged from the
AC outlet. Failure to observe this practice may cause permanent damage
to all equipment connected via HDMI sockets.
IDENTIFICATION OF CONTROLS
17 SPEAKERS A, SPEAKERS B : Connect the respective SPEAKER A's
FRONT L, FRONT R, SURR R, SURR L and CENTER channels to their
corresponding loudspeakers. Make sure the "+" (red) terminal and
"-"(black) terminal are connected to the corresponding "+" and
"-"terminals of the loudspeaker. Use extra care to ensure that no stray
wires or strands cross between posts or terminals at either end.
Connect left and right channels of Speakers B to the corresponding
remote loudspeakers. When Speakers B is activated, the output is
converted to "Stereo" as indicated in the VFD. Combining Speaker A
and Speaker B (SPEAKERS A + B) will also result to the source being
downmixed to stereo.
The T 755 is designed to produce optimum sound quality when
connected to speakers with impedances within its operating range.
Please make sure that all the speakers are rated 4 ohms minimum per
speaker.
NOTE
Use stranded wire of at least 16 gauge (AWG). Connections to the T 755
can be made with banana plugs (US model only) or by using bare wire
or pins. Use the transverse hole through the post for bare-wire or pin
connections. By loosening the terminal's plastic nut, make a clean, neat
connection and re-tighten carefully. To minimize the danger of short-
circuit, ensure that only 1/2-inch of exposed wire or pin is employed
when connecting.
18 AC POWER INLET: Connect to the supplied IEC-standard removable
AC power cord or a compatible cord.
19 SWITCHED AC OUTLET: This convenience outlet can supply switched
power to another component or accessory. It is powered ON and OFF
by the front panel POWER SWITCH or by the HTR 3's ON and OFF keys.
The total draw of all devices connected to this outlet must not exceed
120 watts for North America version and 115W for European version.
20 POWER: The POWER switch supplies the master AC mains power for
the T 755. When this switch is at ON position, the T 755 is in standby
mode as shown by the amber status condition of the standby LED. If
you intend not to use the T 755 for long periods of time (such as when
on vacation), switch the POWER switch to the OFF position. When the
POWER switch is at OFF position, the front panel power button, HTR 3
remote control or ZR 4 cannot activate the T 755.
REAR PANEL
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