UTI Music Egypt - Yamaha uses an array of drivers and wall reflections to create surround-sound. The YSP sound projector technology used in the YSP- 2700 consists of a 16 "beam drivers," each
YSP-2700 - Features - Sound Bars - Audio & Visual - Products - Yamaha USA
Yamaha YSP-2700 - Twasl Smart Technologies
Amazon.com: Yamaha YSP-2700 MusicCast 107W 7.1-Channel Soundbar with Wireless Subwoofer, Black : Electronics