Denon Home Sound Bar 550 Surround Sound Bundle Powered 4.1-channel sound bar system with Dolby Atmos®, DTS:X, Bluetooth®, Amazon Alexa, Apple AirPlay® 2, and HEOS built-in (Black Surrounds) at Crutchfield
Samsung HW-B450 vs Samsung HW-B550 Side-by-Side Soundbar Comparison - RTINGS.com