The Sonos Arc Ultra is a premium smart soundbar featuring breakthrough Sound Motion technology that delivers an expanded soundstage with Dolby Atmos surround sound. This advanced home theater system includes 14 Sonos-engineered drivers: 7 silk-dome tweeters (2 fire upward for height channels), 6 midwoofers, and a Sound Motion dual-membrane woofer with 4 motors, all powered by 15 Class-D digital amplifiers for 9.1.4 spatial audio.

The soundbar measures 46.38 inches wide, 2.95 inches tall, and 4.35 inches deep, with a sleek matte black finish weighing 13.01 lbs. It features WiFi 6 (802.11a/b/g/n/ac/ax) compatibility, Bluetooth 5.3, and HDMI eARC connectivity with included cable. The Arc Ultra supports multiple audio formats including Stereo PCM, Dolby Digital, Dolby Digital Plus, Dolby Atmos, Dolby TrueHD, Multichannel PCM, and DTS Digital Surround.

Smart features include Sonos Voice Control and Amazon Alexa compatibility with far-field microphone array, capacitive touch controls for play/pause/volume/grouping, Trueplay tuning for both iOS and Android, AI-powered speech enhancement with 4 customizable levels for dialogue clarity, Night Sound mode with dynamic range compression, and AirPlay 2 support. The soundbar is powered by a Quad Core 4xA55 1.9GHz processor with 2GB RAM and 8GB storage. It works seamlessly with existing TV remotes and includes wall mounting hardware with M5 x 0.8mm thread pitch.