NAD T755 Owner's Manual page 8

IDENTIFICATION OF CONTROLS
FRONT PANEL
11 A SPEAKERS B: Press either speaker A or B or both to select the
set of speakers you wish to listen to. Speaker A is the main set of 5
multichannel and surround speakers. Speaker B is an auxiliary set
for remote locations such as other rooms of your home. For Speaker
B selection, all surround sound sources are downmixed to stereo.
Combining Speaker A and Speaker B (SPEAKERS A + B) will also result to
the source being downmixed to stereo.
12 [ ] SOURCE [ ] : Press these buttons to toggle through the input
selections – Source 1, Source 2, Source 3, Source 4, iPod, Source 7, Front
Input, Media Player and Tuner. More Sources could be directly recalled
through these buttons upon enabling them at the Setup Menu (See the
section "SOURCE SETUP" at Setup Menu discussion).
13 LISTENING MODE: Use to step through the T 755's Listening mode as
discussed in the section "LISTENING MODE". Depending on the format of
the currently selected input (digital or analog, stereo or multichannel),
various listening modes are available.
14 TONE CONTROLS: Press to adjust TREBLE control using the VOLUME
knob over a ± 10dB range. Press again to adjust BASS control. See also
section about "TONE CONTROLS" under "MAIN MENU" discussions.
15 TONE DEFEAT: Tone Controls are enabled or disabled by pressing
this button. Tone controls are bypassed at "Tone Defeat" while at "Tone
Active"; the tone controls are enabled again. See also section about
"TONE CONTROLS" under "MAIN MENU" discussions.

16 FRONT INPUT/MP: Use this button to directly select Front Input and
Media Player. Toggle button to switch between Front Input and Media
Player input.
17 PHONES: Accepts stereo headphone using a standard 1/4-inch stereo
phone plug (use a suitable adapter for headphones equipped with a
smaller plug). Plugging in headphones will automatically switch the
T 755 to Stereo, Stereo Downmix or Analog Bypass modes.
18 FRONT INPUT jacks: Use these convenience jacks for occasional
sources such as a camcorder, tape player, video game console, any
analog audio or optical digital audio and composite or S-Video video
sources. If your source has a single audio out jack only or is marked
"Mono output", plug this into the T 755's Front "R (Mono)" input. On
the other hand, if your source has two output jacks indicative of stereo
output, insert both jacks into the T 755's corresponding Front "L" and "R
(Mono)" input to achieve stereo output as well.
19 MP/MIC input: Connect your MP3's standard stereo phone jack to
this input. This is the same input where Audyssey microphone jack is
connected. See also discussion about "AUDYSSEY SETUP".