A sound choice for a more sustainable future
The Sonos Certified Refurbished program is key to our sustainability efforts, helping minimize waste and extend the life of our products.
1% for the Planet
Refurbished Sub 4
$719
4.9/5
Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song.
Certified Sonos quality
Every refurbished product undergoes thorough testing to guarantee it's good as new and includes:
The same one-year warranty as a brand new product
All accessories, manuals, and other documentation
Pristine packaging and necessary replacement parts
Tech Specs
Amplifiers
Dual Class-D digital amplifiers perfectly tuned to the subwoofer's unique acoustic architecture.
Woofers
Dual 5" x 8" elliptical woofers face inward for a force-canceling effect that virtually eliminates distortion.
Architecture
Ported cabinet enhances bass response.
Frequency Response
As low as 25 Hz
EQ
Audio settings automatically equalize to balance Sub 4 and the paired Sonos speaker(s). Use the Sonos app to adjust bass, treble, and loudness.
Trueplay
This software measures the acoustics of the room then fine-tunes your Sonos system.
Learn more
