Sony HT-7200DH - Manual (Page 35)

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To activate the muting function
Press MUTING.
The muting function will be canceled when
you do the following.
• Press MUTING again.
• Increase the volume.
• Turn off the receiver.
To avoid damaging your
speakers
Before you turn off the receiver, be sure to turn
down the volume level.
To listen to the sub woofer
Be sure to use the controls on the rear panel of
the sub woofer for this operation.
1 Press POWER.
The POWER indicator on the front panel of
the sub woofer lights up.
2 Turn LEVEL to adjust the volume.
Set the volume level to suit your preference
according to the selected input as slight
adjustments may enhance the sound.
Note
Do not set the volume of the sub woofer to
maximum as extraneous noise may be heard.