Yamaha RX-V1900BL User Manual

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Advanced sound configurations
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OPERA
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REV.DELAY
Reverberation delay. Adjusts the time difference between the beginning of the direct sound and 
the beginning of the reverberation sound. The larger the value, the later the reverberation sound 
begins. A later reverberation sound makes you feel as if you are in a larger acoustic environment.
Control range: 0 to 250 ms
REV.LEVEL
Reverberation level. Adjusts the volume of the reverberation sound. The larger the value, the 
stronger the reverberation becomes.
Control range: 0 to 100%
DIRECT
(“2ch Stereo” only)
2-channel stereo direct. Bypasses the decoders and DSP processors of this unit for pure hi-fi stereo 
sound when playing 2-channel analog sources.
Choices: AUTO, OFF
y
• Select “AUTO” to bypass the decoders, DSP processors and the tone control circuitry only when 
“BASS” and “TREBLE” are set to 0 dB (page 46).
• Select “OFF” not to bypass the decoders, DSP processors and the tone control circuitry when 
“BASS” and “TREBLE” are set to 0 dB.
• When multi-channel signals are input, they are downmixed to 2 channels and output from the front 
left and right speakers.
• The low-frequency signals of the front left and right channels are redirected to the subwoofer in the 
following cases:
– “LFE/BASS OUT” is set to “BOTH” (page 75).
– “FRONT SP” is set to “SMALL” (page 75) and “LFE/BASS OUT” is set to “SWFR” (page 75).
CT LEVEL
SL LEVEL
SR LEVEL
SB LEVEL
PL LEVEL
PR LEVEL
(“7ch Stereo” only)
7-channel stereo center, surround left, surround right, surround back, presence left and presence right 
levels. Adjusts the volume level of each channel in the 7-channel stereo mode.
Control range: 0 to 100%
Sound field parameter
Features
(dB)
Le
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Source sound
Reverberation
REV.TIME
REV.DELAY
Time
60 dB
Source sound
Le
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REV. LEVEL
Time