ヤマハ | SR-B30A,ヤマハ | SR-B30A,Yamaha SR-B30A Powered sound bar with built-in subwoofers, Bluetooth®, and Dolby Atmos® at Crutchfield,Yamaha SR-B30A Dolby Atmos Sound Bar with Built-In Subwoofers,Yamaha SR-B30A Dolby Atmos Sound Bar with Built-In Subwoofers - B2B - Blackwire