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SDP-40HD Setup
3-37
SETTING CROSSOVER POINTS (continued)
THX ULTRA2 SUB ON, OFF
Enables boundary gain compensation (BGC) for THX Ultra2-
certified subwoofers.
•Select ON if the subwoofer using the Main Zone audio output
connectors labeled Subwoofer L/R is THX Ultra2-certified.
When ON is selected, the BGC parameter can be used to adjust
boundary gain compensation.
•Select OFF if the subwoofer using the Main Zone audio output
connectors labeled Subwoofer L/R is not THX Ultra2-certified.
When OFF is selected, the BGC parameter is not available
(N/A).
BGC (BOUNDARY GAIN COMPENSATION) ON, OFF
Adjusts boundary gain compensation when the THX ULTRA2 SUB
parameter is set to ON.
•Select ON to apply a high pass 55Hz filter to all Main Zone
audio output connectors and listening modes.
•Select OFF, and no filtering is applied to the Main Zone audio
output connectors and listening modes.
Note:
BGC compensates for increased bass energy that is caused by the
proximity of the speakers to the listening room walls.
ASA (ADVANCED SPEAKER ARRAY) ON, OFF
ASA is a proprietary THX technology to process rear channel signals to
optimize the listening experience for THX Ultra2 listening modes, including
THX UL2Cin, THX MUSIC, DTS THX UL2Cin, DTS THX MUSIC, 5.1mc THX
UL2Cin, and 5.1mc THX MUSIC. Applied to film sources, ASA processing
blends surround channel signals to optimize ambient and directional
surround sounds. Applied to music sources, ASA processing places surround
channel signals on a wide, stable rear soundstage.
ASA processing is available when one of the THX ULTRA2 listening
modes is activated and both side and rear speakers are present.
The ASA parameter can be changed in any mode, but the change
will have no effect unless the above conditions are met.
To maximize the effectiveness of ASA processing, configure a
7.1-channel speaker setup so the rear speakers are placed close
together facing the center of the listening space.
• Select APART if the distance between the rear speakers is
greater than 4 feet (1.2m).
• Select CLOSE if the distance between the rear speakers is
greater than 1 foot (0.3m), but less than 4 feet (1.2m).
• Select TOGETHER if the distance between the rear speakers is
less than 1 foot (0.3m).
or
SPEAKERSSETUP CUSTOM SETUP
SPEAKERSSETUP SYNTHESIS 7CH
ULTRA2 SUB
ULTRA2 SUB
or
SPEAKERSSETUP CUSTOM SETUP
BGC
BGC
SPEAKERSSETUP SYNTHESIS 7CH
or
SPEAKERSSETUP CUSTOM SETUP
ASA
ASA
SPEAKERSSETUP SYNTHESIS 7CH