Yamaha RX V2095RDS Owner's Manual page 72

ADVANCED FEATURES
REV. LEVEL (Reverberation Level)
This parameter adjusts the volume of the reverberation sound.
The larger the value, the stronger the reverberation becomes.
Control Range:
0 – 100%
Level
Direct sound
S. DELAY (Surround Delay)
Adjusts the delay between the direct sound and the first reflection
on the rear surround side sound field. The larger the value, the
later the surround sound field is generated.
Control Range:
When Dolby Pro Logic Surround is decoded:
15 – 30 milliseconds
When Dolby Digital or DTS is decoded:
0 – 15 milliseconds
When a program without Dolby Surround or DTS
encoded is used:
15 – 49 milliseconds
70
REV. LEVEL
Time