State-of-the-art technology: For a particularly natural and realistic sound experience, the subwoofer delivers extremely deep bass supported by AMBEO virtualisation technology 3D surround sound with thunderous bass: An 8-inch high-end woofer paired with a 350W Class D amplifier and sealed enclosure delivers deep bass down to 27 Hz. Wireless connectivity with Sennheiser Soundbar Plus: Advanced multi-sub array technology lets you connect up to 4 subwoofers wirelessly for a clean aesthetic and calibrate them individually for optimal sound Automated self-calibration: With its built-in far-field microphone, the subwoofer scans your room and studies its acoustics with extreme precision, creating a unique, immersive 3D sound experience Effortless control: Operate the subwoofer via the intuitive Smart Control App, which offers multiple audio and equalizer settings. Enjoy a future-proof experience thanks to regular updates Wired connectivity with Sennheiser Soundbar Max: Mono RCA input provides