Lexicon Lexicon MC-12 manual During automatic calibration, do not

SETUP

Lexicon

Step D: Repositioning the Microphones for Automatic Calibration (continued from page 3-43)

R E C O M M E N D E D microphone positioning for automatic calibration

During automatic calibration, do not:

✗arrange the microphones along the perimeter of the listening positions or space

FL C FR

✗position the microphones in spots where the

listeners’ heads will not be during listening

✗ obstruct the line-of-sight path between the microphones and the speakers

✗ position the microphones on the floor, on seat cushions, or in locations obstructed by furniture and other fixtures, where echoes might obscure calibration noise signals

SL SR

✗position the microphones within 2 feet (0.61m) of speakers and walls or more than 30 feet (9.14m)

from any one speaker

The illustration at the right provides an example of improper
microphone placement during the microphone check. The
microphones are positioned on the floor along the perimeter of
the listening space, making it difficult for the MC-12 to calibrate
optimal speaker distances and output levels for the actual	RL	RR
listening positions.

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