Rel S/550 Subwoofer

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S/550 redefines power and finesse in a compact cabinet, pairing a 550-watt Pure Class D amplifier with advanced CarbonAlloy™ drivers to deliver speed, scale, and dynamics.


Sale price$6,299.00
Colour: Piano Black Lacquer

Key features

Linear Class D

550 watts (RMS)

10" (250mm) long-throw, CarbonAlloy™

Piano Black Lacquer, Gloss White Lacquer 8 coats

Front-firing active driver, down-firing passive

Rel S/550 Subwoofer

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Rel S/550 Subwoofer

The REL S/550 Subwoofer stands as a masterclass in precision engineering—where raw power meets exquisite refinement. Designed for discerning listeners who demand both musicality and authority, the S/550 combines a 550-watt Pure Class D amplifier with REL’s advanced CarbonAlloy™ driver technology to deliver breathtaking speed, depth, and articulation.

Whether anchoring a high-end stereo setup or enhancing cinematic realism, the S/550 brings lifelike bass performance to medium-sized rooms with elegance, control, and effortless style.

Rel S/550 Subwoofer

550-Watt Pure Class D Amplifier – Effortless Power and Control

At the heart of the S/550 lies a 550-watt (600-watt peak) Class D amplifier that delivers immense headroom, tight grip, and sustained output without strain. This ensures fast, dynamic bass that stays musical and detailed, whether you’re enjoying delicate acoustic passages or thunderous movie soundtracks.

Rel S/550 Subwoofer

CarbonAlloy™ Driver Technology – Lightning Speed, Deep Impact

REL’s completely redesigned 10” CarbonAlloy™ long-throw driver, capped with a pure carbon fiber surface, delivers ultra-fast transients and beautifully textured bass. The cone’s light-yet-rigid structure ensures agility and depth in equal measure—bass that starts and stops with lifelike precision.

Rel S/550 Subwoofer

Redesigned Passive Radiator – Expansive, Effortless Bass Extension

The 12” down-firing passive radiator adds powerful low-end extension down to 19Hz (-6dB), creating a sense of scale far beyond the cabinet’s size. Its stiffer, lighter design (now 40% more rigid) allows greater excursion, adding authority and cinematic weight without distortion.

Rel S/550 Subwoofer

Pure Analog Signal Path – Seamless Integration with Any System

REL’s 100% analog input filters and renowned High-Level Neutrik Speakon connection allow the subwoofer to blend perfectly with your main speakers. This preserves the full tonal character of your amplifier and system—producing cohesive, natural bass that sounds like part of your speakers, not separate from them.

Rel S/550 Subwoofer

Striking Design & Build Quality – Crafted for Performance and Beauty

With eight layers of hand-polished piano black or gloss white lacquer, elegant detailing, and advanced cabinet bracing, the S/550 is as beautiful as it is functional. Every detail—from hidden badges to front-rail leveling adjusters—reflects REL’s commitment to both usability and visual refinement.

Line Array & Wireless Flexibility – Scalable for the Ultimate System

Whether used as a single unit, a stereo pair, or in a Line Array configuration, the S/550 is built to evolve with your system. Add REL’s Airship Direct™ wireless module for a high-bandwidth, low-latency wireless connection that maintains full performance while eliminating visible cabling.

Rel S/550 Subwoofer

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