Lexicon Lexicon MC-12 UL TRA2 SUB , BGC (Boundary Gain Compensation) , ASA (Advanced Speaker Array)

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.

BGCTHX SETUPSET CROSSOVERSSPEAKERSSETUP

BGCCUSTOM SETUPSET CROSSOVERSSPEAKERSSETUP

@** ULTRA2 SUBTHX SETUPSET CROSSOVERSSPEAKERSSETUP

@** ULTRA2 SUBCUSTOM SETUPSET CROSSOVERSSPEAKERSSETUP

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

ASATHX SETUPSET CROSSOVERSSPEAKERSSETUP

ASACUSTOM SETUPSET CROSSOVERSSPEAKERSSETUP