212/SX vs MartinLogan Depth 212
The Depth 212's power @ 8ω is 1.1kW against the 212/SX's 1.0kW. Both share low-frequency extension (18 Hz), woofer (12"), and drivers (2).
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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).
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
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Components that show up alongside the 212/SX in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Depth 212's power @ 8ω is 1.1kW against the 212/SX's 1.0kW. Both share low-frequency extension (18 Hz), woofer (12"), and drivers (2).
The S/850's power @ 8ω is 850W against the 212/SX's 1.0kW and its low-frequency extension 19 Hz against 18 Hz. Both share woofer (12") and power handling (1000 W).
The Foundation's power @ 8ω is 700W against the 212/SX's 1.0kW and its low-frequency extension 16 Hz against 18 Hz. Both share woofer (12") and power handling (1000 W).
The S/812's power @ 8ω is 800W against the 212/SX's 1.0kW, its low-frequency extension 19 Hz against 18 Hz, and its power handling 800 W against 1000 W. Both share woofer (12").
Both turn up in the same documented systems.
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