Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song. Pair it with a Sonos soundbar or speaker for bass you can truly feel. Dual force-cancelling woofers deliver thunderous low end with virtually no distortion, all housed in an iconic design updated with a matte finish. Setup takes minutes — just plug in the power and connect via the Sonos app. Thanks to wireless connectivity, you can place Sub 4 anywhere in the room — even under a sofa. For true cinematic depth, pair two Sub 4s with Arc Ultra or Arc.

Key Features

• Force-Cancelling Woofers: Dual inward-facing 5" x 8" elliptical woofers deliver bold bass while cancelling vibration and distortion.
• Powerful Built-in Amplification: Dual Class-D digital amps tuned for optimal performance.
• Flexible Placement: Stand upright or lay flat to fit under furniture.
• Trueplay Tuning: Automatically calibrates sound to your room’s acoustics using the Sonos app.
• Easy Setup: Just one cable and a few taps in the Sonos app to get started.
• Expandable Sound: Add a second Sub 4 for even deeper, more balanced bass in larger setups.

Technical Specifications