Yamaha DDP-10 Owner's Manual page 24

DESCRIPTIONS OF THE FUNCTIONS
1. CENTER SPEAKER
2. REAR SPEAKER
See pages 14 to 16 for details. (Once you have selected proper
modes, you do not have to make a setting change until any
alteration is made in your speaker system.)
5. LFE LEVEL (Adjusting the output level at the LFE
(low frequency effect) channel)
Control range: –20 dB to 0 dB (in 1 dB step)
Preset value: 0 dB
Adjusts the output level at the LFE (low frequency effect)
channel. If the LFE signals are mixed with signals at other
channels to output them from the same speakers, the ratio of LFE
signal level to the level of other signals are adjusted. (See page 3
for details about the LFE channel.)
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3. MAIN SPEAKER
4. LFE/BASS OUT
6. CENTER DELAY (Adjusting the delay of center
sounds (dialog etc.))
Control range: 0 ms to 5 ms (in 1 ms step)
Preset value: 0 ms
Adjusts the delay between the main sounds (at the main
channels) and dialog etc. (at the center channel).
The larger the value, the later the dialog etc. is generated.
This is for making sounds from the left main, center and right
main speakers reach your listening position at the same time by
delaying the sound from the center speaker if the distance from the
center speaker to your listening position is shorter than the
distance from the left or right main speaker to your listening
position.
7. SURROUND DELAY (Adjusting the delay of rear
surround sounds)
Control range: 0 ms to 15 ms (in 1 ms step)
Preset value: 15 ms
Adjusts the delay between the main sounds (at the main
channels) and surround sounds. (at the rear channel).
The larger the value, the later the surround sounds is generated.