Sub 4 is a new generation wireless subwoofer designed to enhance the low end of Sonos systems, with two drivers and a reflex port that deliver deep, powerful and dynamic bass without distortion. Essential for completing soundbars and large-scale home theatre setups, it can be placed anywhere in the room and integrated with Arc Ultra, Arc or Beam for a cinematic audio experience in the most demanding residential or contract projects.
Amplifiers: Two Class D digital amplifiers perfectly optimised for the subwoofer's acoustic architecture.
Woofers: Two 12.7 cm x 20.3 cm elliptical woofers facing inwards create a force-cancelling effect that virtually eliminates distortion.
Architecture: The reflex port design enhances bass.
Frequency response: Down to a minimum of 25 Hz
Equalisation: Audio settings automatically equalise to balance Sub 4 and paired Sonos speakers. Use the Sonos app to adjust bass, treble and volume.
Trueplay: The software analyses the acoustics of the room and optimises the Sonos System accordingly.
Colours: Black, White
Finish: Matte
Connection button: Press once to add Sub 4 to your system during setup.
Wi-Fi: Connects to any router with 2.4 or 5 GHz transmission compatible with the 802.11 a/b/g/n/ac/ax protocol.
Ethernet: 10/100 port for direct connection to router
Voltage: Internal power supply 100-240 V 50/60 Hz
CPU: Quad Core
4xA55 1.9 GHz
Memory: 512 MB DDR4
4 GB eMMC
Operating temperature: 0 °C to 40 °C
(32 °F to 104 °F)
Further info from manufacturer on SUB 4 Sonos