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In a typical home theater system, the distance from each speaker to the listening position will be
different. The most common example: in many home theaters the center and rear speakers sit closer
to the listener than the main speakers. In such a situation the sound emitted from the closer speakers
will be heard first. For many movie soundtracks the effect of this may be very mild, perhaps unnotice
able. In others, it can be subtly distracting. To compensate for this, the GTP-760 can slightly delay the
audio sent to the center and rear (closer) speakers. In this way, when playing Dolby Digital or Dolby
Pro Logic soundtracks, the sound from all speakers arrives uniformly at the listening position as
intended by the film’s producer[FD1].
To set the center channel delay, use the ( or ( buttons to highlight the CENTER field. Measure the
distance from the listening position to the center speaker (DIM C) and to one of the main speakers
(DIM L or DIM R). Subtract the center channel distance from the main L or R channel distance. For
example, if the main speakers are 15 feet from the listening position and the center speaker is 12 feet,
the difference is 3 feet and the center channel delay is set to 3 milliseconds (15-12 = 3). Use the < and
> arrow button on the remote control to change the CENTER delay settings. The GTP-760 can delay
the center channel output up to 5 milliseconds and thus compensates for center channel speakers that
are up to 5 feet closer to the listening position than the main left and right speakers.
In rare system setups, the center channel speaker is actually farther away than the main left and right
speakers. In these cases, set the center channel delay to 0mS.
Similarly, for the rear channels, use the ( or ( buttons to highlight the REAR field. Measure the distance
from the listening position to either the left or right surround speaker (DIM LS or DIM RS). Subtract the
rear speaker distance from the main speaker distance. The resulting distance is equivalent to the delay
in milliseconds for the rear delay setting. For example, if your rear speaker distance is 9 feet and the
front distance is 15 feet, the correct rear channel delay setting is 6 milliseconds (15-9=6). Again, set
the rear channel delay to 0 if the rear channels are further from the listening position than the fronts.
When both delays have been entered, highlight DONE and press select/play to save your settings and
return to the SETUP menu.
3.3 SPEAKER SIZE
In the SETUP screen, use the or arrows to highlight SPEAKER SIZE and press select/play.
You will see:
SPEAKER SIZE
SELECT PRESET: 1
MAIN: SMALL
CENTER: ON
REARS: ON
SUBWOOFER: ON
UNDO CHANGES
DONE
LCR
RSLS
DIM LS DIM RS
DIM R
DIM C
DIM L
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