Lexicon MC-12 manual Setup, Bgc Boundary Gain Compensation, Asa Advanced Speaker Array

Setup Lexicon

BGC (BOUNDARY GAIN COMPENSATION) ON, OFF

SETUP SPEAKERS SET CROSSOVERS CUSTOM SETUP BGC

or SETUP SPEAKERS SET CROSSOVERS THX SETUP BGC

Adjusts boundary gain compensation when the THX ULTRA2 SUB parameter is set to ON.

•Select ON to apply a highpass 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

SETUP SPEAKERS SET CROSSOVERS CUSTOM SETUP ASA

or SETUP SPEAKERS SET CROSSOVERS THX SETUP ASA

ASA is a proprietary THX technology that processes rear channel signals to optimize the listening experience for THX Ultra2 listening modes, including

5.1THX ULTRA2, 5.1 THX MUSIC, DTS THX ULTRA2, DTS THX MUSIC, 5.1a THX ULTRA2, or 5.1a THX MUSIC. Applied to film sources, ASA processing blends surround channel signals to optimize ambient and direc- tional surround sounds. Applied to music sources, ASA processing places surround channel signals on a wide, stable rear soundstage.

ASA processing is not available unless:

•One of the THX ULTRA2 listening modes is activated.

•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).

You can use the remote control 7/5 button to toggle between 7- and 5-channel playback. When you use the 7/5 button , the MC-12 automatically:

•Activates ASA processing during 7-channel playback.

•Deactivates ASA processing during 5-channel playback.

•Switches between the 5.1 THX ULTRA2 and THX, DTS THX ULTRA2 and DTS THX, or 5.1a THX ULTRA2 and 5.1a THX listening modes.

3-32