REL S/850 Flagship Reference Subwoofer 
 
The REL S/850 represents the pinnacle of the Series S line, designed for those who demand uncompromising performance and refinement. Equipped with an 850-watt Linear Class D amplifier and REL’s advanced CarbonAlloy™ driver technology, it delivers breathtaking dynamics, control, and effortless scale across both music and cinema applications.
 
At its core lies a 12-inch active CarbonAlloy™ driver paired with a 12-inch long-stroke passive radiator, combining explosive power with exceptional agility. The result is deep, articulate bass that integrates seamlessly with main speakers, adding texture, speed, and tonal nuance that brings recordings vividly to life.
 
 
DESIGN & CRAFTSMANSHIP
 
Every element of the S/850 has been meticulously engineered for precision and beauty. The redesigned cabinet—lower, wider, and deeper—optimises acoustic performance while maintaining visual elegance. Subtle design accents, such as titanium-hued badges, stainless-steel recessed handles, and machined front-rail level adjusters, reflect REL’s commitment to both form and function.
 
For those seeking a touch of warmth and individuality, an optional Premium Wood Grille is available, each one unique in grain and tone.
 
 
UNRIVALLED PERFORMANCE
 
Benefiting from innovations first introduced in REL’s flagship Reference series, the S/850 achieves remarkable speed, clarity, and dynamic range. It delivers lightning-fast transients, thunderous yet controlled low frequencies, and a remarkably silent noise floor—attributes that define a truly reference-grade subwoofer.
 
Its versatility allows integration as a single unit, in stereo pairs, or within Line Array configurations for expansive, three-dimensional sound reproduction.
 
PRICE & WARRANTY
 
Warranty: 3 Years
Included Accessories: Power Cord, 32’ Neutrik Speakon Cable, Cloth Grille, Line Array Hardware, User Manual
 
The REL S/850 stands as a masterpiece of balance—combining raw authority with refined grace, it transforms any high-performance system into a truly immersive listening experience.