Upgrade your movie and music experience with the 4.0 Channel Denon Home Sound Bar 550 that features a 26 compact profile and delivers powerful, balanced audio. With a six-array driver arrangement - premium .75" soft dome tweeters, 2.15" full-range drivers, and 2.15" x 3.5" passive radiators, the sound bar delivers immersive 3D surround sound in hi-res audio formats like Dolby Atmos and DTS:X for theater grade surround sound. The sound bar supports 4K video quality, Dolby Vision and HDR for an extraordinary cinematic experience with stunning, nuanced contrast, detailed imaging, and brilliant colors and depth. Access millions of available songs from the popular streaming apps or wirelessly stream the music of your choice from your own digital library with built-in HEOS. With built-in Alexa, the sound bar supports effortless voice control that allows you to control volume, inputs, audio levels, and audio modes with just simple voice commands. The sound bar also allows hands-free control through Home Automation Systems like Control4, Crestron, URC, Elan, and more. With a quick-setup guide and all the necessary cables included, set up your sound bar in minutes and enjoy room-filling audio.