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Configuring the MC-12 for V4 EQ
2-10
Lexicon MC-12 Controller
REPOSITIONING THE MICROPHONES FOR AUTOMATIC CALIBRATION
Proper microphone placement is essential to achieve the desired automatic calibration results. Microphone placement determines whether the
MC-12 calibrates optimal results for a single listening position; several listening positions in a single row; or several listening positions in the
listening room.
For best results, automatic calibration should be performed with four microphones that have passed the microphone check. But, the MC-12
performs automatic calibration as long as at least one microphone has passed the microphone check. In this case, place the successfully
checked microphone in the primary listening position.
Troubleshooting
Description
Result
The microphone detected calibration noise
signals without error.
The MC-12 did not detect the
microphone during the silence check.
The microphone level determined during the
silence check was not confirmed during the
microphone check.
The microphone level is more than 20dB below
the highest microphone level.
The microphone level could not be determined
because of excessive noise in the listening
room.
N/A
• Examine the microphone input connection to ensure that the microphone is properly connected
to the MC-12. Make sure the microphone cable plug is fully inserted for a solid connection.
• The microphone may be damaged. Contact an authorized Lexicon dealer for assistance.
• Examine the microphone input connection to ensure that the microphone is properly connected
to the MC-12. Make sure the microphone cable plug is fully inserted for a solid connection.
• The microphone may be positioned too far from the front loudspeakers. Refer to
Positioning
the Microphones for the Microphone Check (page 2-6) to ensure that the microphones
are properly positioned for the microphone check.
• The microphone may be damaged. Contact an authorized Lexicon dealer for assistance.
• Examine the microphone input connection to ensure that the microphone is properly connected
to the MC-12. Make sure the microphone cable plug is fully inserted for a solid connection.
• The microphone may be positioned too far from the front loudspeakers. Refer to Positioning
the Microphones for the Microphone Check (page 2-6) to ensure that the microphones
are properly positioned for the microphone check.
• The microphone may be damaged. Contact an authorized Lexicon dealer for assistance.
• Eliminate extraneous noises in the listening room, including conversations, air conditioners, and
sounds that filter in through open doors and windows.
• The microphone may be damaged. Contact an authorized Lexicon dealer for assistance.
(MICROPHONE)
OK
(MICROPHONE)
NOT DETECTED
(MICROPHONE)
SIGNAL TOO LOW
(MICROPHONE)
OUT OF RANGE
(MICROPHONE)
TOO MUCH ROOM NOISE