Yamaha YAS-71BL Owner's Manual - Page 21

AIR SURROUND XTREME What is AIR SURROUND XTREME ? 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. Typical 5.1 channel speaker system Front speakers Subwoofer Center speaker Surround speakers The sound image of the system BASIC OPERATION The system creates the virtual 7.1 channel surround sound with the center system and the subwoofer/ system control. C: Center virtual speaker SR, SL: Surround virtual speakers FR, FL: Front speakers SBR, SBL: Surround back virtual speakers SW: Subwoofer 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. 17 En English