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New... REL S/550 Subwoofer
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. UK orders will begin shipping the week of October 6th.
Premium Wood Grille orders ship the week of November 15th.
550-watt Pure Class D Amplifier
10" CarbonAlloy™ Active Driver with 12" Down-Firing Passive Radiator
Music & Theater Systems, Medium Rooms
Stereo Pairs & Line Arrays
Optional Premium Wood Grille Available. As a natural wood material, grain and color variations are expected and unique to each grille
A Massive Step Forward
S/550 is the gateway to the Serie S line, delivering the speed, depth, and nuance that define REL’s performance ethos. While its larger sibling, the S/850, sets the ultimate benchmark, the S/550 carries forward many of the same design innovations—ensuring the essence of Serie S is fully realized in a more compact form.
The results are remarkable: S/550 offers lightning-fast transients, deep articulate bass, and tonal balance that breathes life into both music and film. Its ability to combine authority with refinement makes it an ideal choice for those seeking a true high-end experience in medium-sized systems, with performance that consistently exceeds expectations.
For those seeking a more bespoke finish, S/550 is available with an optional Premium Wood Grille upgrade for added warmth and individuality.
Designed for Excellence
Take in the design as a whole: horizontal strakes carved into the side walls, elegant elliptical returns that cradle handles finished in a warm golden-silver, echoing raw titanium. Everywhere you look, thoughtful details emerge—but the purpose is clear. This generation delivers the seemingly impossible: a larger cabinet that is lower, wider, and deeper, yet visually lighter.
The added internal volume gives drivers greater freedom and amplifiers improved efficiency, while updated internal bracing keeps cabinet resonances firmly under control. Subtler touches also make a difference, badges that disappear into the grille cloth, silver accents that rest quietly within the cabinet plane, and model numbers etched discreetly into the front rails, visible only when stacked in a Line Array.
An optional Premium Wood Grille adds warmth and individuality, while front-rail levelling adjusters ensure effortless setup, even on uneven floors. Together, these refinements reflect REL’s philosophy that great design is as much about thoughtful usability as it is about beauty and performance.
What's in the box
Serie S/550 Subwoofer
Power Cord
32' Neutrik Speakon cable
Cloth Grille
Line Array Mounting Hardware
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 - 10 in. (250mm) long-throw, CarbonAlloy™ cone structure, die cast alloy chassis
Passive Radiator Size & Material -12 in. (305mm), Carbon/Carbon flat cone structure, steel chassis
Low Frequency Extension -6 dB at 19Hz
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 - 550 watts (RMS)
Amplifier Type - Linear Class D
Wireless Capability - REL AirShip Direct (sold separately)
Finish - Piano Black Lacquer, Gloss White Lacquer 8 coats
In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.
Delivery Standard Shipping and Click & Collect
Payment Secure payment available
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