Lexicon MC-12 Digital Controller Lexicon MC-12 - Manual (Page 73)

SETUP
MC-12
3-31
ULTRA2 SUB ON, OFF
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 ULTRA2 SUB
parameter is set to ON. When ON is selected, a highpass 55Hz filter
is applied to all Main Zone audio output connectors and listening
modes. When OFF is selected, no filter is applied to the Main Zone
audio output connectors and listening modes.
Note:
The BGC parameter compensates for increased bass
energy caused by the proximity of the speakers to the
listening room walls.
BGC THX SETUP SET CROSSOVERS SPEAKERS SETUP
OR BGC CUSTOM SETUP SET CROSSOVERS SPEAKERS SETUP
@** ULTRA2 SUB THX SETUP SET CROSSOVERS SPEAKERS SETUP OR
@** ULTRA2 SUB CUSTOM SETUP SET CROSSOVERS SPEAKERS SETUP
ASA (Advanced Speaker Array) ON, OFF
A proprietary THX technology that processes rear channel signals
to optimize the listening experience for THX Ultra2 listening
modes, including 5.1
ULTRA2, 5.1 MUSIC,
ULTRA2, MUSIC, 5.1a ULTRA2, or 5.1a MUSIC
listening mode is activated. 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.
Note:
ASA processing is not available unless:
• One of the THX Ultra2 listening modes listed
above is activated.
• Both side and rear speakers are present.
To maximize the effectiveness of ASA processing, configure a
7.1-channel speaker setup in which 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).
. . . ASA (Advanced Speaker Array) continues on page 3-32
ASA THX SETUP SET CROSSOVERS SPEAKERS SETUP
OR ASA CUSTOM SETUP SET CROSSOVERS SPEAKERS SETUP