REL Acoustics S/850 12 Inch Powered Subwoofer - Gloss White

Editor’s Choice 2023 – The Absolute Sound

Product of the Year 2022 – Hi-Fi+

Reference Bass with Elegance and Authority

The REL Acoustics S/850 is a 12-inch powered subwoofer built for serious music lovers and home theater enthusiasts who want deep, authoritative bass without sacrificing musicality. Part of REL’s flagship S Series, the S/850 combines cutting-edge amplifier technology, proprietary filter design, and a high-performance carbon-fiber driver to deliver bass that is fast, articulate, and seamlessly integrated. For anyone seeking true reference-level performance in a compact yet powerful form, the S/850 is a revelation.

"Ferocious and Refined"

The S/850 features a single 12-inch long-throw carbon-fiber driver powered by a 1,000-watt NextGen3 Class D amplifier. Together, they produce bass that extends effortlessly to 19 Hz while remaining tight, tuneful, and distortion-free. Music gains depth and presence, while movies explode with visceral energy. REL’s signature high-level input ensures the S/850 works in harmony with your main speakers, creating a seamless and natural full-range experience.

• 1,000-watt NextGen3 amplifier delivers immense, clean power

• 12" carbon-fiber driver for speed, control, and accuracy

• Frequency extension down to 19 Hz for true subsonic realism

• REL High-Level Input ensures perfect musical integration

REL’s proprietary carbon-fiber cone is incredibly stiff yet lightweight, delivering lightning-fast transient response and eliminating unwanted resonances. The sealed cabinet design ensures articulate, accurate bass, while REL’s advanced filtering guarantees perfect timing and integration with any system. The result is bass that feels as natural as it is powerful.

Connectivity & Compatibility

• High-Level Neutrik Speakon Input for seamless integration with your amplifier’s output

• Low-Level RCA Input for traditional connections

• LFE RCA Input for home theater processors

• Stacking Option – pair multiple S/850 units for large-scale, reference installations

Whether you’re expanding the scale of a high-end two-channel system or adding subterranean weight to a surround sound theater, the S/850 adapts effortlessly. Its elegant Piano Gloss Black finish complements modern and classic interiors, while its flexible setup options make it ideal for both medium and large rooms.

The REL S/850 is not just another subwoofer—it’s a precision instrument designed to unlock the full emotional power of music and film. Fast, authoritative, and elegant, it delivers bass on a truly reference level.