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9: Calibrating the 
appropriate settings 
automatically 
(AUTO 
CALIBRATION)
The DCAC (Digital Cinema Auto Calibration) 
function allows you to perform automatic 
calibration, such as checking the connection 
between each speaker and the receiver, 
adjusting the speaker level, and measuring the 
distance of each speaker from your listening 
position automatically. Refer also to “Quick 
Setup Guide” supplied with the receiver.
Before you perform the auto calibration, set up 
and connect the speakers (page 15-18).
• The AUTO CAL MIC jack is used for the 
supplied optimizer microphone only. Do not 
connect other microphones. Doing so may 
damage the receiver and the microphone.
• During the calibration, the sound that comes 
out of the speakers is very loud. Pay 
attention to the presence of children or to the 
effect on your neighborhood.
• Perform the auto calibration in a quiet 
environment to avoid the effect of noise and 
get a more accurate measurement.
• If there are any obstacles in the path between 
the optimizer microphone and the speakers, 
the calibration cannot be performed 
correctly. Remove any obstacle from the 
measurement area to avoid measurement 
failure.
• When you use a bi-amplifier connection, set 
“Sur Back Assign” to “BI-AMP” in the Auto 
Calibration settings menu before you 
perform auto calibration (page 74).
Notes
• The auto calibration function does not work in 
following cases.
– MULTI IN is selected.
– “2ch Analog Direct” is being used (page 111).
– Headphones are connected.
• Cancel the muting if MUTING is set to on.
1
Connect the supplied optimizer 
microphone to the AUTO CAL 
MIC jack.
2
Set up the optimizer 
microphone.
Place the optimizer microphone at your 
listening position. Use a stool or tripod so 
that the optimizer microphone remains at 
the same height as your ears.
On setting up the active sub 
woofer
• When a sub woofer is connected, turn on the 
sub woofer and turn up the volume 
beforehand. Turn the VOLUME knob to just 
before the mid-point.
• If you connect a sub woofer with the 
crossover frequency function, set the value 
to maximum.
• If you connect a sub woofer with an auto 
standby function, set it to off (deactivated).
Before you perform the auto 
calibration
Optimizer microphone