Yamaha YAS-71CU - Manual (Page 21)

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BASIC
OPERATION
Ordinarily, two front speakers, a center speaker, two surround speakers,
and a subwoofer are necessary for enjoying 5.1 channel surround sound.
■ Virtual 7.1 channel
The AIR SURROUND XTREME technology, using only the front left
and right speakers of the center system and subwoofer, enables you to
enjoy a realistic 7.1 channel sound by simulating sound from virtual
speakers at center, surround, and surround backs.
You can check the virtual surround effect and adjust the volume balance according to your preference and the
characteristics of your listening room. See the following pages for details.
• Checking the virtual surround effect
☞ P. 20
• Adjusting the volume balance ☞ P. 32
Use this feature to adjust the volume balance of the subwoofer, center, and surround channels during playback.
AIR SURROUND XTREME
What is AIR SURROUND XTREME ?
Typical 5.1 channel speaker system
Front speakers
Subwoofer
Center speaker
Surround speakers
The system creates the virtual 7.1 channel surround sound with the center system and the subwoofer/
system control.
C: Center virtual speaker
FR, FL: Front speakers
SW: Subwoofer
SR, SL: Surround virtual speakers
SBR, SBL: Surround back virtual speakers
The sound image of the system