Yamaha RX-V481 Owner's Manual page 91

Surround
Selects whether or not surround speakers are connected and their sizes.
Settings
Select this option for small speakers.
Small
The subwoofer or front speakers will produce surround channel low-
frequency components (configurable in "Crossover").
Select this option for large speakers.
Large
The surround speakers will produce all of the surround channel
frequency components.
Select this option when no surround speakers are connected.
None
The front speakers will produce surround channel audio. Virtual
CINEMA DSP works when you select a sound program.
Crossover
Sets the lower limit of the low-frequency components that can be output from a
speaker whose size is set to "Small". A frequency sound lower than the specified
value will be produced from the subwoofer or front speakers.
Settings
40 Hz, 60 Hz, 80 Hz, 90 Hz, 100 Hz, 110 Hz, 120 Hz, 160 Hz, 200 Hz
Note
If the volume and crossover frequency are adjustable on your subwoofer, set the volume to half and
crossover frequency to maximum.
Subwoofer Phase
Sets the phase of the subwoofer. When the bass sound is lacking or unclear,
switch the subwoofer phase.
Settings
Normal Does not reverse the subwoofer phase.
Reverse Reverses the subwoofer phase.
Extra Bass
Enables/disables Extra Bass. When Extra Bass is enabled, you can enjoy
enhanced bass sounds, regardless of the size of the front speakers and the
presence or absence of the subwoofer.
Settings
Off Disables Extra Bass.
On Enables Extra Bass.
Note
You can also use BASS on the remote control to enable/disable Extra Bass (p.49).
Virtual CINEMA FRONT
Selects whether to use the front 5-channel speaker (Virtual CINEMA FRONT)
configuration.
Settings
Off Disables the front 5-channel speaker configuration.
On Enables the front 5-channel speaker configuration.
Note
▪ Select "On" only when utilizing the Virtual CINEMA FRONT configuration (p.15).
▪ This setting is not available when "Surround" is set to "None".
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Distance
Sets the distance between each speaker and listening position so that sounds from the
speakers reach the listening position at the same time. First, select the unit of distance
from "Meter" or "Feet".
Choices
Front L, Front R, Center, Surround L, Surround R, Subwoofer
Setting range
0.30 m to 24.00 m (1.0 ft to 80.0 ft), 0.05 m (0.2 ft) increments
Default
Front L, Front R, Subwoofer: 3.00 m (10.0 ft)
Center: 2.60 m (8.6 ft)
Others: 2.40 m (8.0 ft)
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