Description
S/850
The REL S/850 stands as the benchmark of the Serie S line, with its design innovations shaping and elevating its three stablemates. Every improvement is sweeping and comprehensive, ensuring the entire Serie S family benefits from the advancements pioneered in the S/850.
Power + Richness
The results are spectacular: it delivers incredible attack and output beyond even the former Carbon Special at the very limits of performance, yet with the precision, quietness, and clarity that produce true dynamic range. Lightning-fast transients, deep effortless bass, and tonal richness combine to deliver nuance that elevates both music and theatre.
Design
The 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.
Driver
With every detail carefully considered, the S/850 delivers a level of power, nuance, and scale that redefines what’s possible in its class.
S/850 drivers now feature lightweight pure carbon-fibre centre caps, replacing the solid aluminium mouldings of earlier models. These caps reduce moving mass while stiffening the cone, resulting in explosive dynamics and the ability to resolve the quietest passages with delicacy and nuance. Feather-light yet rigid, they extend performance at both extremes — a hallmark of REL design.
Features
- 850-watt Linear Class D Amplifier
- 12-inch CarbonAlloy™ Active Driver with 12″ Long-Stroke Passive Radiator
- Music & Theatre Systems, Medium-to-Large Rooms
- Stereo Pairs & Line Arrays
- Optional Premium Wood Grille Available
Specifications
- Type: Front-firing active driver, down-firing passive
- Active Driver Size & Material: 12 in. (305mm) long-throw, CarbonAlloy™ cone structure, die cast alloy chassis
- Passive Radiator Size & Material: 12 in. (305 mm), Carbon/Carbon flat cone structure, steel chassis
- Low Frequency Extension: -6 dB at 19 Hz
- Input Connectors: High Level Neutrik Speakon, Low Level (2) RCA, (1) LFE RCA, (1) LFE XLR
- Output Connectors: High Level Neutrik Speakon, (1) Low Level RCA, (1) LFE RCA or (1) LFE XLR
- Power Output: 850 watts (RMS)
- Amplifier Type: Linear Class D
- Wireless Capability: REL AirShip Direct (sold separately)
- Finish: Piano Black Lacquer, Gloss White Lacquer, 8 coats
- Dimensions (W x H x D): 488 x 410 x 540 mm
- Net Weight: 42.5 kg
Included
- S/850 Subwoofer
- Mains Power Cable
- Neutrik Speakon Cable
- Documentation
Full REL Acoustics Range Available
Unilet Sound & Vision are official retail partners for REL Acoustics, providing sales, advice and assistance on their entire range of high-quality products. Please do get in touch if you would like a demonstration or wish to purchase.
