This Yamaha YSP1400BL Digital Sound Projectors achieve actual (not virtual) surround sound by producing beams of sound that reflect off the walls and controlling their directions. Beam position (listening position) can be adjusted over a wide area by using the remote control or the dedicated app, allowing many people to enjoy the powerful, expansive sound. This single body sound bar has eight array speakers in the center and subwoofers in the stands at both ends. With a built-in 76 W digital amplifier to power the speakers, it produces sound with exceptional power and presence. The stands are equipped with dual built-in subwoofers that have large 8.5 cm drive units. Combined with the high-stiffness bass reflex duct and wide, large volume cabinet, the unit will deliver clear, rich and deep bass for movie sound effects and music. The independent right and left channel configuration provides superior sound imaging.