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

Its redesigned, wider lower cabinet enhances scale and presence, while subtle details ensure it looks as refined as it sounds. Available with standard cloth grilles or the option to upgrade to premium wood, the REL S/850 subwoofer sets the benchmark for design and performance.

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

The REL S/850 cabinet is longer, lower, wider, and deeper—proportions that give it a naturally dynamic presence. Subtle design details refine its look and feel: clean creases that catch the light, warm silver-gold badges with a titanium-like finish, and stainless-steel handles recessed into graceful ellipses. Beneath each front rail, precision-milled billet cylinders provide exact levelling, while thick internal aluminium slabs secure the handles for safe stacking in Line Arrays. Designed to complement modern interiors, the S/850 also offers an optional Premium Wood Grille, adding warmth and individuality.

Tailored For:

Dual-use systems (music + theatre)
Medium-to-large rooms
Stereo Pairs & Line Arrays

Technical Specifications
Drivers: 12″ CastAlloyTM active driver + passive radiator
Amplifier: 850W Linear Class D
Cabinet: Wider, lower profile for improved presence
Low Frequency Extension: -6dB at 19 Hz
Wireless: Airship Direct ready
Grilles: Standard cloth; optional premium wood grille
Finishes: Piano Black, White Gloss

Brand

Finish

Gloss Black, Gloss White
Grille Option

Cloth Grille, Wood Grille
Wireless Transmitter

No Airship Direct, With Airship Direct

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