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The Sundown Audio SA-Series v.3 is a 12-inch car subwoofer rated at 1250W RMS with dual 4-ohm voice coils. Its motor is derived from the U v.2 series, using a more compact, efficient design with an extended 2.75-inch coil to raise power handling. It suits bass-focused builds that want strong output from a single driver, and it sits above entry-level subs in output and build while costing far less than Sundown's competition-grade lines. Owners treat it as a hard-hitting daily sub that needs a stout enclosure and clean power to sound its best.
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Owners describe the SA v.3 as a loud, durable daily sub that takes abuse and keeps playing clean. Most praise its output for the size and its value against pricier Sundown lines, while noting it wants a proper box and real power.
The Sundown Audio SA-Series v.3 12" subwoofer is a 12-inch car subwoofer rated at 1250 watts RMS and 2500 watts peak. It uses dual 4-ohm voice coils, which allows more than one wiring option.
Its motor structure is redesigned and inspired by the U v.2 series. The motor is smaller and has an extended 2.75" copper-wound, high-temperature voice coil. The cone is non-pressed paper with fiber reinforcement, and the surround is high-roll rubber for maximum excursion. The basket is cast aluminum for strength and cooling.
It can be installed in a sealed or ported enclosure. The recommended sealed box is 1.0 cu ft. The recommended ported box is 1.5 to 2.0 cu ft, tuned to about 35Hz.
