ONKYO HT-S8400 User Manual

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0dB:

This should be used when listening to movies.

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5dB:

Select this setting for content that has a very wide 
dynamic range, such as classical music.

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10dB:

Select this setting for jazz or other music that has a 
wider dynamic range. This setting should also be 
selected for TV content as that is usually mixed at 
10 dB below film reference.

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15dB:

Select this setting for pop/rock music or other 
program material that is mixed at very high listening 
levels and has a compressed dynamic range.

Movies are mixed in rooms calibrated for film 
reference. To achieve the same reference level in a 
home theater system each speaker level must be 
adjusted so that –30 dBFS band-limited (500 Hz to 
2000 Hz) pink noise produces 75 dB sound pressure 
level at the listening position. A home theater system 
automatically calibrated by Audyssey 2EQ

®

 will play at 

reference level when the master volume control is set to 
the 0 dB position. At that level you can hear the mix as 
the mixers heard it.
Audyssey Dynamic EQ is referenced to the standard 
film mix level. It makes adjustments to maintain the 
reference response and surround envelopment when the 
volume is turned down from 0 dB. However, film 
reference level is not always used in music or other non-
film content. Audyssey Dynamic EQ Reference Level 
Offset provides three offsets from the film level 
reference (5 dB, 10 dB, and 15 dB) that can be selected 
when the mix level of the content is not within the 
standard.

• If  “Dynamic EQ” setting is set to “Off”, these technologies 

cannot be used.

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Light:

Activates Light Compression Mode.

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Medium:

Activates Medium Compression Mode.

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Heavy:

Activates Heavy Compression Mode. This setting 
affects volume the most. It quiets the loud parts, 
such as explosions, and boosts the quiet parts so they 
can be heard.

• If you make Dynamic Volume active, “Dynamic EQ” is set to 

“On”. The Dynamic Vol indicator will light.

• When  “Dynamic EQ” is set to “Off”, “Dynamic Volume” is

 

automatically switched to “Off”.

• These technologies cannot be used when:

– a pair of headphones is connected, or
– Direct listening mode is selected.

Audyssey Dynamic EQ solves the problem of 
deteriorating sound quality as volume is decreased by 
taking into account human perception and room 
acoustics. Dynamic EQ selects the correct frequency 
response and surround levels moment-by-moment at 
any user-selected volume setting. The result is bass 
response, tonal balance, and surround impression that 
remain constant despite changes in volume. Dynamic 
EQ combines information from incoming source levels 
with actual output sound levels in the room, a 
prerequisite for delivering a loudness correction 
solution. Audyssey Dynamic EQ works well by itself. 
However, if Audyssey 2EQ is on, the two technologies 
work in tandem to provide well-balanced sound for 
every listener at any volume level.

Audyssey Dynamic Volume solves the problem of large 
variations in volume level between television programs, 
commercials, and between the soft and loud passages of 
movies. Dynamic Volume looks at the preferred volume 
setting by the user and then monitors how the volume of 
program material is being perceived by listeners in real 
time to decide whether an adjustment is needed. 
Whenever necessary, Dynamic Volume makes the 
necessary rapid or gradual adjustments to maintain the 
desired playback volume level while optimizing the 
dynamic range. Audyssey Dynamic Volume works fine 
by itself, but can also be used with 
Audyssey Dynamic EQ. When both are on, 
Audyssey Dynamic EQ adjusts the perceived bass 
response, tonal balance, surround impression, and 
dialog clarity whether watching movies, flipping 
between television channels, or changing from stereo to 
surround sound content, when Dynamic Volume adjusts 
the volume.