Thx Ultra2 Sub; Bgc (Boundary Gain Compensation) - Lexicon MC-4 User Manual

MC-4
MAIN MENU
MODE ADJUST
AUDIO CONTROLS
SETUP
SETUP
The THX ULTRA2 SUB and BGC parameters are available on
the CUSTOM and THX SETUP menus. When a parameter
setting is adjusted on one menu, it is automatically adjusted
on the other menu as well.

THX ULTRA2 SUB

SETUP SPEAKERS CUSTOM SETUP
Indicates whether the subwoofer connected to the audio output
connector labeled Subwoofer is Ultra2 certified. Select the ON
setting if the connected subwoofer is Ultra2 certified and the OFF
setting if the connected subwoofer is not Ultra2 certified. When
ON, the CUSTOM and THX SETUP menu BGC parameter is
available to adjust boundary gain compensation. When OFF, the
BGC parameter is not available.
SETUP SPEAKER SETUP
INPUTS CUSTOM SETUP CUSTOM SETUP
THX SETUP
SPEAKERS SPEAKERS
SPEAKER DISTANCES
REAR PANEL CONFIG
DISPLAYS LEVELS CALIBRATION
VOLUME CONTROLS
TRIGGER
LOCK OPTIONS
M
SUB
40Hz
ON, OFF
THX SETUP THX ULTRA2 SUB
or
CUSTOM SETUP
FRONT L/R
CENTER
SIDE L/R
REAR L/R
SUBWOOFER
R SR RR
THX ULTRA2 SUB
40Hz 60Hz 60Hz
BGC
C ASA
60Hz
L SL RL
40Hz 60Hz 60Hz

BGC (Boundary Gain Compensation)

SETUP SPEAKERS
Adjusts boundary gain compensation when the CUSTOM and
THX SETUP menu THX ULTRA2 SUB parameter is ON. When the
BGC parameter is ON, a high-pass 55Hz filter is applied to all
listening modes and audio output connectors. When OFF, no filter
is applied to listening modes and audio output connectors. When
the parameter setting is N/A, the THX ULTRA2 SUB parameter is
OFF and boundary gain compensation cannot be adjusted.
Note:
BGC compensates for increased bass energy that is
caused by the proximity of the loudspeakers to the
listening room walls.
ON
OFF
40Hz
60Hz
60Hz
The BGC parameter is not
60Hz
available when the THX
40Hz
ULTRA2 SUB parameter is
OFF
OFF.
N/A
APART
CUSTOM SETUP THX SETUP
or
SETUP
ON, OFF
BGC
3-31