Sony STR-DB900 Operating Instructions Manual page 14

Lets you set the distance from your listening position
to the surround speakers. You can adjust from 1.0 m to
7.0 m in 0.1 meter steps.
If both surround speakers are not placed an equal
distance from your listening position, set this distance
to the closest speaker.
DIST. XX m
x
SB
(Surround back speaker distance)
Initial setting: 3.0 m
Lets you set the distance from your listening position
to the surround back speaker. You can adjust from 1.0
m to 7.0 m in 0.1 meter steps.
PL.
x
SL SR
(Surround speaker placement)
Lets you specify the height of your surround speakers
for proper implementation of surround effects in the
Cinema Studio EX modes (page 24).
• LOW
Select if the height of your surround speakers
corresponds to section A.
• HIGH
Select if the height of your surround speakers
corresponds to section B.
* This setup item is not available when the surround
speaker parameter is set to "NO".
Tip
The receiver lets you input speaker positions in terms
of distance. However, it is not possible to set the
distance of the center speaker further than the front
speakers. Also, the center speaker cannot be set more
that 1.5 m closer than the front speakers.
Likewise, the surround speakers cannot be set farther
away from the listening position than the front
speakers, and can be no more than 4.5 meters closer.
This is because incorrect speaker placement is not
conducive to the enjoyment of 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 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
meters closer than the actual speaker position will
create a fairly realistic sensation of being "inside" the
GB
14
*
B B
60
A A
30
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!