REL Acoustics S/550 Powered Subwoofer White

REL S/550 delivers the speed, scalability, and authority of the S Series in a more compact package. Powered by a 550-watt pure Class D amplifier and advanced CarbonAlloy™ drivers, it delivers refined dynamics and musical nuance in medium-sized rooms. Suitable for both high-end music systems and immersive audio systems, the S/550 proves that true performance is defined by control, not size.

550-watt pure Class D amplifier for fast, articulate bass

10" CarbonAlloy active driver with 12" down-firing passive radiator for depth and speed

Optimized for music systems and home theater audio in medium-sized rooms

Designed for stereo pairs and line-array configurations

A huge step forward

The S/550 is the gateway to the S-Series line, delivering the speed, depth, and nuance that define REL's performance philosophy. While its bigger brother, the S/850, sets an absolute benchmark, the S/550 carries forward many of the same design innovations, ensuring that the essence of the S Series is fully realized in a more compact format.

The results are remarkable: the S/550 delivers lightning-fast transients, deep, articulate bass, and a tonal balance that brings both music and movies to life. Its ability to combine authority and refinement makes it the ideal choice for those seeking a high-end experience in mid-sized systems, with performance that consistently exceeds expectations.

For those wanting a more customized finish, the S/550 is available with an optional Premium Wood Grille for an extra touch of warmth and personality.

FEATURES

Finish 8-Layer High Gloss White Lacquer

Type Front-Firing Active, Down-Firing Passive

Active Driver Size & Material 10-inch (250 mm) long-excursion, CarbonAlloy™ cone structure, die-cast alloy frame

Passive Radiator Size & Material 12-inch (305 mm), Carbon/Carbon flat cone structure, steel frame

Low-Frequency Extension -6 dB at 19 Hz

Input Connectors Neutrik High-Level Speakon, (2) Low-Level RCA, (1) LFE RCA, (1) LFE XLR

Output Connectors Neutrik High-Level Speakon, (1) Low-Level RCA, (1) LFE RCA, or (1) LFE XLR

Output Power 550 watts (RMS)

Amplifier Type Class D Linear

Wireless Capability REL AirShip Direct (sold separately)

Dual Parametric Filtering N/A

Protection System

Fully Electronic Safety Interlock Yes

DC Fail Yes

Output Short Circuit Yes

Mains Input Voltage 220-240 volts, 110-120 volts for some markets

Fuses 8 Amp semi-delay for 220 volt operation, 15 Amp semi-delay for 120 volt operation

Accessories Supplied

Power Cord Yes

Neutrik Speakon Yes (10 meters nominal)

Interconnect -

User Manual Yes