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REL Acoustics S/850 - Active Subwoofer

AED 18,899.00

S/850

Effortless Power, Tuned for Musical Authority
 S/850 is engineered for listeners who want uncompromising performance with a refined, musical touch. Drawing on innovations from our Reference line, it pairs an 850-watt Linear Class D amplifier with advanced CarbonAlloy™ drivers to deliver explosive dynamics, clarity, and effortless scale. Equally at home in high-end music systems or immersive theaters, S/850 brings control and confidence to medium-to-large rooms.

  • 850-watt Linear Class D Amplifier for fast, controlled power delivery
  • 12" CarbonAlloy™ Active Driver with 12" long-stroke Passive Radiator for depth and speed
  • Optimized for music and theater systems in medium-to-large rooms
  • Designed for stereo pairs and line-array configurations
  • Optional premium wood grille available. Crafted from natural materials, each grille features unique grain and color variations.

Stunning Design Meets Raw Power

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.

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 theater.

Designed to be Perfect

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 leveling, while thick internal aluminum 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.

What's in the box

  • Serie S/850 Subwoofer
  • 6' AC Power Cord
  • 32' Neutrik Speakon cable
  • Line Array Mounting Hardware
  • Cloth Grille
  • User Manual and Warranty Information
  • *The Premium Wood Grille is NOT included in your subwoofer purchase but is available for purchase.

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

Passiver Radiator Size & Material

12 in., (305mm), Carbon/Carbon flat cone structure, steel chassis

Low Frequency Extention

-6dB at 19 Hz

Input Connectors

High Level Neutrik Speakon, Low Level stereo RCA, LFE RCA, LFE XLR

Output Connectors

High Level Neutrik Speakon, LFE RCA, LFE XLR

Power Output

850 Watts (RMS)

Amplifier Type

Linear Class D

Wireless Capability

Yes- REL AirShip system [required]. Sold separately.

Fully Electronic Set Safe

Yes

D.C Fault

Yes

Output Short

Yes

Mains Input Voltage

220-240 volts, 110-120 volts for certain markets

Fuses

8 Amp semi delay 220 volts operation, 15 Amp semi delay 120 volts operation

Dimensions (W X H X D)

19.25 x 16.125 x 21.25 in., (488 x 410 x 540 mm)

Weight

42.5 Kg

Mains Lead

Yes

Neutrik Speakon

Yes (10 Meters Nominal)

Interconnect

Yes

Users Manual

Yes

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