Speaker Distance; Adjusting The Volume - NAD T 758 Owner's Manual

SETTING SPEAKER LEVELS AT TEST MODE
While at "Speaker Levels" menu, press the AVR 4 remote's [TEST] key
activating the T 758's Speaker Levels balancing test signal. You will hear
a "surf" sound as you step through your speakers ("Test Mode Active" is
shown beside the Speaker Setup heading), beginning with the Front Left.
If you do not hear the test signal, check your speaker connections or your
"Speaker Configuration" OSD menu settings.
Use the remote's [ D/F ] keys to adjust the loudness of the noise output
from the currently playing channel to the required level (it's usually
simplest to begin with the Front Left). As you cycle the test signal around
the speakers, the OSD will highlight the currently playing channel. The
"level offset" reading on the right will change by 1 dB increments; ±12 dB
adjustment is available. Press [ENTER] to adjust the next speaker.
NOTE
If you are balancing levels "by ear", choose one speaker - usually the
center - as a reference and adjust each of the others in turn to "sound as
loud" as the reference. Be sure that you remain in the primary listening
position while balancing all channels.
To produce the same SPL meter reading (or subjective loudness), use the
remote's [ D/F ] keys to adjust each speaker.
NOTES
• All speakers must be in their final locations before level-setting.
• Your subwoofer (if any) should be set with its integral crossover
defeated, or if undefeatable, set to its highest-possible frequency if
you are using the T 758's Subwoofer output. Final subwoofer-level
adjustment "by-ear, " using music and film sound material, is frequently
useful.
• Due to the effects of room acoustics, matched-pair speakers (front; surround;
back) will not always calibrate to exactly the same level offset readings.
You can exit "Test" mode at any time by pressing [ A ] key, bringing you
back to "Speaker Setup" menu. You can also press the [TEST] key to
discontinue the "Test" mode.

SPEAKER DISTANCE

Your system's speaker distance settings are a subtle but important
refinement of your setup. Informing the T 758 of the loudspeaker-to-
listener dimensions of each speaker automatically imposes the correct
delays, optimizing imaging, intelligibility and surround-sound ambience.
Enter your dimensions with precision within about 1 foot (30 cm).
SETTING SPEAKER DISTANCE
While at "Speaker Distance" menu, use the [ D/F ] keys to individually set
the distance measured from your principal listening position to the front
surface of the corresponding loudspeaker. Distance can be set up to 30
feet or 9.1 meters. Distance can be displayed as feet or meters selectable at
the "Unit of Measure" item.
USING THE T 758 – SETUP MENU

ADJUSTING THE VOLUME

In addition to the Volume knob, use the AVR 4's VOL [
"master volume" of the T 758 raising or lowering the channels altogether. A
momentary keypress will change the master volume by 1 dB increments. If
you hold down VOL [ ], the master-volume change will "run-on" until
the key is released.
Since recordings vary considerably in overall average level, there is no
imperative to listen at any particular master-volume setting. A setting
of -20dB may sound "as loud" from one CD or DVD as -10dB does from
another.
The T 758 will power-up from Standby mode at whatever master volume
setting was last used; however, if the prior setting was greater than -20dB,
the T 758 will power up at -20dB. This prevents inadvertently beginning a
session at excessive volume.
MUTING THE SOUND
Use the AVR 4's [MUTE] key to silence all channels completely. Muting is
always available regardless of the source or listening mode selections.
NOTES
• Changing input or listening-mode selections does not release muting.
• Adjusting the volume level via the AVR 4 or the front panel volume knob
will automatically release the mute function.
OPERATION
] to adjust the
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