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To produce the same SPL meter reading (or subjective loudness), use the
remotes [ D/F ] keys to adjust each speaker.
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.
NOTES
• Allspeakersmustbeintheirnal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 748’s Subwoofer output. Final subwoofer-level adjustment “by-ear,
using music and lm sound material, is frequently useful.
• Duetotheeectsofroomacoustics,matched-pairspeakers(front;
surround;back)willnotalwayscalibratetoexactlythesameleveloset
readings.
SPEAKER DISTANCE
Your system’s speaker distance settings are a subtle but important
renement of your setup. Informing the T 748 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 Front Left, Center, Front Right, Surround Right, Back Right, Back Left,
Surround Left and Subwoofer to the distance measuring from your
principal listening position to the front surface of their corresponding
loudspeakers. Distance can be set up to 30 feet or 9.0 meters Distance can
be displayed as feet or meters selectable at the “Unit of Measure” item.
ADJUSTING THE VOLUME
In addition to the Volume knob, use the AVR 4’s VOL [ ] to adjust the
“master volume” of the T 748 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 748 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 748 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.
AMPLIFIER SETUP
If the surround back speakers are not used in the main zone, their surround
back amplier channels could be assigned for Main back or Main Front use.
The Surround Back amplier is congurable through the following settings
• MainBack: Assign as surround back speakers.
• MainFront: Provide a bi-amp mode for the Main Front speakers (Left
and Right) speakers thus reproducing the Front Left and Front Right
amplier channel outputs.
HDMI SETUP
The T 748 supports HDMI Control and Audio Return Channel (ARC)
functions. Both functions are possible if external devices that also support
both features are interconnected to the T 748 via HDMI connection.
CONTROL CEC
Consumer Electronics Control (CEC) is a set of commands that utilizes
HDMI’s two- way communication to allow for single remote control of any
CEC-enabled devices connected with HDMI. A CEC command will trigger
the necessary commands over HDMI for an entire system to auto-congure
itself to respond to the command.
OPERATION
USING THE T 748  SETUP MENU
21
ENGLISHPORTUGUÊS FRANÇAISESPAÑOLITALIANODEUTSCHNEDERLANDSSVENSKAРУССКИЙ
21


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