Sonos Sub 4 Wireless Subwoofer Colour:White It was designed for CD-4/quadraphonic

It was designed for CD-4/quadraphonic records

minimising the detrimental impact on sound quality seen with straight-line tone controls

Recommended Amp (RMS): 30 – 80 Watts per channel in stereo mode - must be 'clean' power

coils and capacitors

Sonos Sub 4 Wireless Subwoofer Colour:White It was designed for CD-4/quadraphonicSonos Sub 4 Wireless Subwoofer with Dual Class D Digital Amplifiers Sub 4 unlocks the full power of Sonos sound to immerse you deeper in every scene and song. Pair Sub 4 with your Sonos soundbar or speaker for a difference you can hear and feel. Dual force cancelling woofers deliver pulse pounding bass and virtually eliminate distortion. Updated with a matte finish, the iconic design looks great in your home. Set it up in minutes just plug in the