Lexicon Controller Version 4 EQ MC-12 - Manual (Page 17)

Configuring the MC-12 for V4 EQ
2-3
Version 4 EQ User Guide
ABOUT AUTOMATIC CALIBRATION
When running the V4 EQ software, the MC-12 offers automatic
calibration of the listening room’s bass response, loudspeaker
distances, and loudspeaker output levels. A successful microphone
check is required before automatic calibration procedures can be
performed.
The Automatic Calibration Procedures table on the next page
describes all automatic calibration procedures.
BEFORE performing automatic calibration:
✓ Use the CUSTOM or THX SETUP menu to set crossover points
for the loudspeakers connected to the Main Zone audio output
connectors. Setting crossover points, after automatic calibra-
tion is performed, can invalidate calibrated output levels.
✓ Set all associated component (e.g., subwoofers, loudspeakers,
and power amplifiers) volume controls to a reasonable level.
During automatic calibration, the MC-12 outputs calibration
noise signals at fixed volume levels. However, when automatic
calibration ends, the MC-12 automatically reverts to the last
volume level that was selected before automatic calibration
was performed.
✓ Eliminate extraneous noises in the listening room, including
conversations, air conditioners, and sounds that filter in
through open doors and windows.
✓ Remove objects, including people, blocking the line-of-sight
path between the microphones and the loudspeakers.
DURING automatic calibration:
✓ Calibrate the listening room’s bass response BEFORE calibrating
loudspeaker output levels. Room correction applied to the
loudspeakers as a result of the EQ DISTANCES LEVELS or
ROOM EQ procedure can affect loudspeaker output levels,
particularly those of the subwoofer and low frequency effect
(LFE) subwoofer.
✓ The MC-12 outputs calibration noise signals between 55 and
95dB, starting at 55dB and increasing in 5dB increments until
the microphones detect the required level. If calibration noise
signals become too loud, press the
arrow button to cancel
automatic calibration.
✓ Refer to the on-screen display rather than the front panel
display. The on-screen display provides additional information
and instructions.