Sony HT-DDW685 User Manual

• You can also fix the optimizer microphone to a 

tripod (not supplied) and place the tripod at your 
listening position.

• Be sure to remove any obstacles in the path 

between the optimizer microphone and the 
speakers.

• When you face the speaker towards the optimizer 

microphone, you will get a more accurate 
measurement.

The following appears on the display.
A.CAL [5] 

t A.CAL [4] t A.CAL [3] t 

A.CAL [2] 

t A.CAL [1]

The measurement process will take a few 
minutes to complete.
The table below shows the display when 
measurement starts.

* The corresponding speaker indicator lights up in 

the display during measurement.

When measurement ends, “COMPLETE” 
appears on the display and the settings are 
registered.

Disconnect the optimizer microphone from the 
receiver.

• Auto Calibration cannot detect the sub woofer. 

Therefore, the sub woofer settings will be 
maintained.

• You cannot select Auto Calibration when the 

headphone is connected.

• When Auto Calibration starts:

– Stand some distance away from the speakers and 

the listening position to avoid measurement 
failure. This is because test signals are output 
from the speakers during measurement.

– Avoid making noise to get a more accurate 

measurement.

• The Auto Calibration function will be canceled 

when you do the following during the 
measurement process:
– Press ?/1, input buttons or MUTING.
– Change the volume level.
– Press AUTO CAL again.

TV ?/1

AV ?/1

?/1

-

F

G

g

f

Input 
buttons

?/1 
switch

MUTING

MASTER 
VOL +/–

AUTO 
CAL

Environment noise level

NOISE.CHK

Speaker connection

MEASURE and SP 
DET. appears 
alternately*

Speaker level

MEASURE and 
GAIN appears 
alternately*

Speaker distance

MEASURE and 
DISTANCE appears 
alternately*