Sony STR-DE685 Operating Instructions Manual page 20

Multi channel surround setup
(continued)
x Sub woofer selection (
• If you connect a sub woofer, select "YES".
• If you do not connect a sub woofer, select
"NO". This activates the bass redirection
circuitry and outputs the LFE signals from other
speakers.
• In order to take full advantage of the Dolby
Digital bass redirection circuitry, we
recommend setting the sub woofer's cut off
frequency as high as possible.
x Front speaker distance (
XX.X m)
Set the distance from your listening position to
the front speakers (A on page 17).
x Center speaker distance (
XX.X m)
Set the distance from your listening position to
the center speaker. Center speaker distance
should be set from a distance equal to the front
speaker distance (A on page 17) to a distance
1.5 meters closer to your listening position (B
on page 17).
x Surround speaker distance (
DIST. XX.X m)
Set the distance from your listening position to
the surround speakers. Surround speaker
distance should be set from a distance equal to
the front speaker distance (A on page 17) to a
distance 4.5 meters closer to your listening
position (C on page 17).
GB
20
SW S.W. XXX)
DIST.
R
L
DIST.
C
SR
SL
Tip
The receiver allows you to input the speaker position
in terms of distance. However, it is not possible to set
the center speaker further than the front speakers.
Also, the center speaker cannot be set more than
1.5 meters closer than the front speakers.
Likewise, the surround speakers can not be set farther
away from the listening position than the front
speakers. And they can be no more than 4.5 meters
closer.
This is because incorrect speaker placement is not
conducive to enjoy surround sound.
Please note that, setting the speaker distance closer
than the actual location of the speakers will cause a
delay in the output of the sound from that speaker. In
other words, the speaker will sound like it is farther
away.
For example, setting the center speaker distance
1~2 m closer than the actual speaker position will
create a fairly realistic sensation of being "inside" the
screen. If you cannot obtain a satisfactory surround
effect because the surround speakers are too close,
setting the surround speaker distance closer (shorter)
than the actual distance will create a larger sound
stage.
Adjusting these parameter while listening to the
sound often results in much better surround sound.
Give it a try!