The loudspeaker calibration procedure is
very important to achieving a correctly
centred sound image, it should be carried
out carefully.
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loudspeakers > speaker calibration / alternative listening position
This feature allows you to calibrate a
second listening position, just as described
above for the ‘normal’ listening position.
This is a welcome feature for those of you
who for example listen to music from a
different position than watching a movie.
You can switch between both listening
positions by pressing
shift
followed by
THX
.
The selected listening
position is displayed for a
few seconds, both at the
front panel as well as on
screen (OSD) - see
highlighted example.
alternative listening position
speaker calibration
We recommend that you use a sound
level meter (SPL) when performing this
part of the set-up as it is difficult to
judge the levels accurately by ear. Set
the SPL meter to ‘C’ weighting with
‘slow’ response and to read 75 dB SPL
at the centre of its scale. During the
calibration you should place the SPL
meter at ear level (with the microphone
pointing towards the ceiling) at your
preferred listening.
During the calibration the AV32R ‘Dual Processor’ will send the THX-specified pink noise test
signal to the selected loudspeaker so that the output level from each channel may be
adjusted to achieve a 75dB SPL sound level. Press
ok
to start the calibration. Adjust the
channel output level using the
VOL +
and
VOL -
keys until your SPL meter reads 75 dB. Use
the
G
or
H
keys to move between loudspeakers. Select
-Calibration Complete-
when ready.
GRP00989.02-UK AV32R Dual.qxd 10/22/03 4:01 PM Page 62
