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The REL S/812 is a medium-chassis subwoofer built around a 12-inch active driver, a 12-inch SuperProgressive passive radiator and an 800-watt RMS NextGen5 Class D amplifier. REL rates its low-frequency extension down to 19Hz, and the passive radiator design lets it behave like a tight sealed box at low volumes and open up when pushed. High-level Neutrik Speakon, low-level RCA and LFE XLR inputs let it join both stereo and home theater systems. Reviewers treat it as a rare sub that keeps cinema-scale output and music-grade speed in one box, and it suits listeners who want deep bass without a tower-sized cabinet.
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Professional reviewers widely praise the S/812, and it has collected multiple Editors' Choice awards. They describe thunderous, room-shaking bass delivered with unusual speed and composure, and say it disappears into the room and makes main speakers sound larger. Critics note it stays poised on both fast movie soundtracks and delicate music.
The REL S/812 is a subwoofer built around a 12-inch active driver and a 12-inch passive radiator. A 800-watt RMS NextGen5 Class D amplifier powers it. It uses a medium-sized chassis.
The active driver has an alloy cone with a carbon fiber backing, which lets it handle high power. The SuperProgressive passive radiator extends low-frequency response down to 19Hz. At low volumes the unit acts like a tight, sealed box, and at higher volumes it acts like an open design.
It has high-level Neutrik Speakon, low-level RCA, and LFE XLR inputs for connecting to audio and home theater systems.
