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About the 212/SX
The REL Acoustics 212/SX subwoofer delivers powerful, precise bass with two front-firing 12-inch Continuous Cast Alloy active drivers, one rear passive radiator, and one down-firing 12-inch carbon/carbon passive radiator. Powered by a 1,000-watt RMS NextGen5 Class D amplifier, it extends to -6dB at 18 Hz, providing room-filling low frequencies with speed, control, and musicality. Designed for high-end 2-channel audio and large home theater setups, it features ultra-fast filters, enhanced driver suspension, and comprehensive protection systems including fully electronic set-safe, D.C. fault, and output short protection. Connectivity includes high-level Neutrik Speakon, low-level stereo RCA, LFE RCA, and LFE XLR inputs. Wireless capability is available via the optional REL AirShip system. Housed in a piano black lacquer cabinet with carbon fiber bracing, it measures 14.25 x 33 x 20.25 inches (362 x 838 x 514.5 mm) and weighs 128 lbs (58 kg).
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