Sundown Audio SA Classic 12" 1000 Watt RMS Car Subwoofer, Dual 2 Ohm Voice Coils, 19 mm Xmax, Ported or Sealed Box Ready

The Sundown Audio SA Classic 12" car subwoofer is designed for custom vehicle audio systems that need deep bass capability, flexible enclosure options, and dual voice coil wiring. It is rated for 1000 Watts RMS and 2000 Watts peak, with dual 2 Ohm voice coils for use with compatible amplification. The driver is designed for sealed, ported, and band pass enclosures when paired with correct tuning, crossover settings, and installation practices.
Performance Value
The SA Classic 12" uses 19 mm Xmax to support extended cone movement during low frequency playback. Its listed resonant frequency is 33.71 Hz, and sensitivity is rated at 83.21 dB at 1 watt and 1 meter. A 21.64 N per A BL factor, 0.52 Qts value, and 21.21 liter Vas provide useful information for enclosure modeling, amplifier matching, and system planning. These specifications help installers tailor the bass system to available vehicle space and desired low frequency response.
Use Case
This subwoofer is suitable for sedans, coupes, trucks, SUVs, hatchbacks, and custom audio projects using a dedicated bass enclosure. A recommended ported enclosure uses 1.75 cubic feet of internal volume with 26 square inches of port area and a 35 Hz tuning target. A 1.0 cubic foot sealed enclosure is also listed for more compact systems. For fourth order applications, the recommended sealed side is 0.75 cubic foot and the ported side is 2.25 cubic feet with 45 square inches of port area.
Design Details
The driver uses a high strength cast aluminum frame, large aluminum Faraday ring, and low distortion motor construction. Its high temperature voice coil wire is paired with stitched XL tinsel leads to support movement between the cone assembly and terminals. Spring loaded terminals simplify connection during installation. The subwoofer requires a 12.625" cutout and has a 6.5" mounting depth, while listed driver displacement is 0.10 cubic foot.
Reliability
Proper enclosure construction, secure mounting, suitable crossover settings, and correctly adjusted amplifier gain are important for dependable operation. The SA Classic 12" should be wired only to a compatible amplifier load based on its dual 2 Ohm voice coil configuration. Use appropriate speaker wire, maintain correct polarity, and follow the recommended enclosure guidance to support controlled bass response and consistent long term operation.