An 850 W class-D amplifier with 12" CarbonAlloy active driver, & 12" carbon passive

The most anticipated REL release ever! The first shipment is available by September 30 and will be sold out, but we guarantee to have one for YOU! Reserve it now!

The S/850 is the foundation of Serie S, the model upon which the entire range was built. With immense reserves of power and speed, it delivers explosive attack, immense output, and the refinement to disappear seamlessly into music or film. Every design lesson proven here shaped the rest of the Serie S line.

A redesigned, wider lower cabinet enhances scale and presence, while subtle detailing ensures the S/850 looks as refined as it sounds. It comes standard with black or white cloth grilles, with the option to upgrade to premium sculpted wood for an even more luxurious finish.

As with all Serie S models, the S/850 is Airship Direct™ ready, offering wireless freedom without sacrificing speed or detail.

What’s New in REL's Serie S Subwoofers 

- Faster, lighter drivers with carbon-fibre refinements

- Redesigned passive radiators with greater travel

- Amplifiers with expanded headroom & control

- Wider, lower cabinets for improved scale & presence

- New Grille Options: cloth ( standard ) or sculpted premium wood ( optional )

- Airship Direct™ wireless compatibility across the range

General Specifications

Drivers: 12" CastAlloy™ active driver, 12" passive radiator

Amplifier: 850 Watt class-D amplifier

Cabinet: Wider, lower profile for improved presence

Low Frequency Extension ( -6 dB ): 19 Hz

Wireless: Airship Direct™ ready

Grilles: Standard cloth ( black or white ); optional premium wood grille

Finishes: Piano Black, White Gloss

Dimensions ( W x H x D ): 17" x 17.5" x 20" 

Net Weight: 75 lb. ( 34 kg )