Lexicon MV-5 User Manual page 33

MV-5
• A monitor is connected to the MV-5 for viewing the OSD
during the procedure.
• The microphone, included with the MV-5, must be connected
to the rear panel Microphone input connector and positioned
in the primary listening position.
Note: For best results, install the microphone onto the accompanying
rod by threading the two parts together and hold or place it in the
primary listening position. Use a microphone stand or tripod if
necessary.
CAUTION!
DO NOT place the microphone too close to the speakers
during the autocal procedure. If the microphone is within
one foot of the speaker, the test tones that are output
during the autocal procedure could cause a feedback loop
which may damage the speaker. Harman Specialty Group
assumes no responsibility for speaker damage.
The Full Autocal procedure is comprised of three parts, the Far Field
Test, the Near Field Test, and the Subwoofer Test. Each part provides
directions on the OSD at the start of the test, for volume level and
microphone positioning, and each test sends test tones to the
speakers.
Note: Before activating the calibration, ensure that the MV-5 is NOT
muted. If Mute is active, then the test tone calibrations will not be
accurate.
For the Far Field test, the test tones sent to each speaker follow a
specific order. The order of testing is Front Left, Front Right, Center,
Side Left, Side Right, Rear Left, and Rear Right.
Note: The test tones may be loud. Be prepared before starting the Full or
Semi Autocal procedures.
The Far Field test sets the speaker distances, cross-over points, and
output levels. The microphone is stationed in the center of the
preferred listening area and a test tone is sent to each speaker.
Note: If the Far Field test is skipped, the Near Field test must also be
skipped.
The Near Field test adjusts the MV-5, performing system equalization
to compensate for speaker performance and placement. The
procedure seeks to give the system a consistent tonal balance
between the front left, front right, center, side left, side right, rear left,
and rear right speakers, if applicable. The test calibrates each speaker
separately, and the user individually selects each speaker to calibrate.
The microphone should be held within two feet of the speaker baffle
as a test tone is sent to the speaker.
The Subwoofer test is done in two parts. The user is instructed to
hold the microphone to the left of the primary listening position and
then to the right of the primary listening position. Two test tones are
sent out to all connected subwoofers during each of the two test
phases. Two tones are sent to ensure that subwoofers with auto
power settings are active during the procedure.
Note: If there are no subwoofers in the system, then this test will not pass
and must be skipped.
For optimum results, all noise generators in the room should be
removed before performing the full or semi autocal procedure.
However, air conditioners and similar steady-state background noise
should have minimum impact on the test and can be left on.
When the procedure is complete, the user will be prompted to save
the settings. These settings can be saved in one of three Preset
locations. See Section 4: Audio Controls & Video Status for more
information on the Preset locations.
Note: When calibration is complete, the volume level is set to a relatively
high level. Before playing an audio track, be sure to turn the volume
down to avoid potentially offensive or damaging volume levels.
Setup
3-7