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15
Preparations
OperationsOther
KR-V9090/8090 (En/T)
Preparing for surround sound
4
Adjust the speaker volume.
1 Press to select TEST TONE.
2 Adjust the level of the speaker emitting
the test tone. Each speaker should pro-
duce the test tone at the same volume
level as the front speakers.
1 "TEST L" :Front speaker, left channel.
2 "TEST C" :Center speaker.
3 "TEST R" :Front speaker, right channel.
4 "TEST RS" :Surround speaker (right).
5 "TEST LS" :Surround speaker (left).
T sETL
SURROUND
Initial display when the test tone is selected
•The buzzing test tone moves once every 1.5 seconds.
To increase
To decrease
TUNING/SKIP
5
Adjust the delay time.
1 Calculate the delay time suitable for your
listening room (see below).
2 Press to select delay time.
3 Adjust the delay time.
4 Press SETUP again to quit.
5 Press VIDEO once to return the remote to
its original operating mode.
To increase
To decrease
TUNING/SKIP
How to calculate the proper delay time
Assuming that the distance from the front speaker is A meters
and the distance from the surround speakers is B meters
Am
Bm
Front
speakers
Surround speakers
1 Use the delay time calculation chart on the right.
Example: When A = 3 m, B = 3 m, the delay time is 20 ms.
2 Use the following formula for calculation.
Delay time = 20 + 3 x (A - B) (Unit: ms)
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A (m) B (m)
VIDEO
SETUP
SETUP
•For KR-V8090 the “TEST RS” and “TEST LS” displays are replaced by
“TEST S” and the test sound is emitted from the right and left surround
speakers simultaneously.
- -- 15
SURROUND
Display when delay time is selected
•The delay time can be adjusted in the range from 15 ms to 30 ms, in 5
ms steps.
• This adjustment is also possible with the LEVEL CONTROL key of the
main unit.
What is delay time?
The sound entering the ears include the direct sound coming from the
sound source and the indirect sounds reflected from the walls, floor,
ceiling, etc. The indirect sounds are delayed because they travel
longer distance required for reflection before they reach the ears. The
delay time is the difference in time between the direct sound and
indirect sounds.
• The input selector does not change the first time you press the VIDEO
key.
Display when the test tone is output from the left speaker
•Be sure to adjust from your listening position.
• The volume is adjusted in 1dB steps each time you press the TUNING/
SKIP +/– keys.
• The volume levels can be adjusted in the range from –10 dB to +10 dB.
hcL+2dB
SURROUND