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The REL S/812 subwoofer represents a significant advancement in REL's mid-sized subwoofer lineup, delivering powerful, precise, and deep bass performance suitable for high-end two-channel music systems and multichannel home cinemas. It features a 12-inch Continuous CastAlloy™ active driver with an ultra-lightweight carbon fiber backing that strengthens and stiffens the cone while eliminating internal backwave interference. Complementing this is a 12-inch down-firing Carbon/Carbon SuperProgressive passive radiator designed for extremely long linear travel, allowing the subwoofer to act like a sealed-box 12-inch design at low volumes and a high-output 14-inch design at its limits. The S/812 is powered by an 800-watt NextGen5 Class D amplifier, which provides 45% more power than its predecessor, enabling robust output and dynamic range. It includes custom filters such as PerfectFilter™ and PureTheatre™ to enhance bass extension, clarity, and theater dynamics. Connectivity options are comprehensive, including high-level Neutrik Speakon, low-level stereo RCA, LFE RCA, and LFE XLR inputs and outputs, allowing seamless integration with various audio systems. The design also supports stacking in 4- or 6-unit line arrays for enhanced performance. The cabinet dimensions are approximately 17" W x 18" H x 20" D, and the unit weighs about 75 lbs. The S/812 is finished in a high-quality gloss black lacquer with aluminum grab handles and discrete badging, combining aesthetic appeal with functional design.
Driver and acoustic performance characteristics
Amplification power output and characteristics
Driver configuration and enclosure design
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The S/550's power @ 8ω is 550W against the S/812 (x2)'s 800W and its woofer 10" against 12". Both share low-frequency extension (19 Hz) and drivers (1).
The S/850's power @ 8ω is 850W against the S/812 (x2)'s 800W. Both share low-frequency extension (19 Hz), woofer (12"), and drivers (1).
The S/812 matches the S/812 (x2) on power @ 8ω (800W), low-frequency extension (19 Hz), woofer (12"), and power handling (800 W).
Both turn up in the same documented systems.
The Metro XD's power @ 8ω is 750W against the S/812 (x2)'s 800W and its low-frequency extension 20 Hz against 19 Hz. Both share woofer (12") and drivers (1).
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