Amplifiers: Two D-class digital amplifiers perfectly matched to the acoustic architecture of the subwoofer.
Woofers: Two 5 x 8 inch elliptical woofers face inward for a force-cancelling effect that virtually eliminates distortion.
Architecture: Housing with opening enhances the bass reproduction.
Frequency range: Lower limit range 25 Hz
EQ: Audiosettings are automatically tuned to Sub 4 and the connected Sonosspeaker(s) to balance. Adjust the bass, treble and loudness with the Sonos app.
True play: This software measures the acoustics of your room and adjusts your Sonos system accordingly.
Dimensions: Height: 389mm, Width: 402mm, Depth: 158mm, Weight: 11.79kg
Connect button: Press once Sub 4 to add to your system during installation.
What's in the box: Sonos Sub 4, Power cable (length: 2 m), Documentation (Quick start guide, legal information and Warranty conditions).