Description
Sundown Audio SA-12 v.2 D4
The Sundown Audio SA-12 v.2 D4 is a 12-inch shallow-mount subwoofer from the SA Series v.2 lineup, designed for high-output bass in installations with limited depth. Featuring a dual 4-ohm (D4) voice coil, it offers flexible wiring options for a variety of amplifier setups. Built with a high-temperature copper voice coil, reinforced cone, and durable foam surround, the SA-12 v.2 D4 ensures clean, controlled low-frequency performance and long-term reliability. Optimized for sealed enclosures, this subwoofer is ideal for trucks, compact cars, and under-seat installations, delivering deep, punchy, and accurate bass in a shallow-mount design.
Specifications
| RE (Ohms) | 3.91 | 6.35 |
| FS (Hz) | 38.8866 | 33.6039 |
| VAS (L) | 26.2867 | 28.0603 |
| Qes | 0.5070 | 0.4996 |
| Qms | 4.5133 | 4.0178 |
| Qts | 0.4558 | 0.4443 |
| Le (mH) | 3.1785 | 4.6357 |
| BL (NA) | 21.9903 | 29.3900 |
| Mms (Grams) | 256.5545 | 321.8425 |
| Cms (uM/N) | 65.2922 | 69.6976 |
| Sens (dB @ 1w/1m) | 86.59 | 85.03 |
| Xmax | 19mm | 19mm |
| T/S SPECS | SAV2 12″ D2 | SAV2 12″ D4 |
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Enclosure Specifications
| Sealed Enclosure | 1.0 cu ft |
| Ported Enclosure | 1.75 cu ft |
| Recommended Tuning | 35Hz |
| Recommended Port Area | 26 sq in |
| Displacement | |
| Depth | 7.35″ |
| Outside Diameter | 12.83″ |
| Cut-Out | 11.01″ |
About The Product
This SA-10/12/15 v.2 series is a top-down upgrade from the original SA series. The 2.75” coil punches way above its weight, outperforming many 3” coils without the adding weight & with the added advantage of a wider spider. We are able to perfectly balance the mass, motor force, and suspension stiffness for the intended power level.
The motor also features a large magnet shorting ring (faraday ring) to reduce distortion and deliver smoother response across the entire acoustic spectrum. The motor & coil setup is mated to an extremely robust multi-layer spider with fully tied-on & doubled-up “XL” tinsel leads. A competition-grade paper cone, strong foam surround, and cast aluminum frame are used to complete this masterpiece. On top of the ~19mm of one-way linear excursion we have an x-mech limit of 37mm one-way before coil bottom making it nearly “bottomless.”
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