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The Sundown Audio M12D1 is a 12-inch car subwoofer built for high-output bass, rated at 2000W RMS and 4000W peak with dual 1-ohm voice coils. It uses a quad-stack magnet, a 3-inch aluminum voice coil on a four-layer aluminum former, and a heavily vented cast-aluminum frame, with 35mm of Xmax for long excursion. Sundown rates it for ported or 4th-order bandpass boxes and advises against sealed enclosures, so it suits bassheads with the space and power to feed it. It is a serious SPL-oriented driver rather than a drop-in upgrade for a stock system.
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Lowest price we've seen: $599.99 on Nov 13 at Tunes & Tint. Tracked across 1 store since Nov 13.
Owner discussion of the M-Series centers on its output and build for the money, with the ported-only recommendation and power demands as the recurring caveats.
The Sundown Audio M-Series M12 (model M12D1) is a 12-inch car subwoofer with dual 1 ohm voice coils. It is rated at 2000W RMS and 4000W max, and it is sold individually.
It has a treated paper cone, a Mega Roll surround and a quad stack magnet structure with a special M-series magnet boot design. The 3-inch high-temperature aluminum voice coil has 4 layers wound on a thick aluminum former. The suspension is Sundown's proprietary PG linear suspension, which is fully computer optimized.
Cooling and venting include a high-stroke coil ventilation system, a high-velocity pole vent and a heavily vented magnetic gap. The cast-aluminum frame base has a high-velocity venting system, and a magnet inner-diameter aluminum shorting ring is included. The motor has a hyper-extended pole, extreme clearances and special winding density in the gap. The backplate is laser-etched and all black.
