3512-04S 12-Inch 4-Ohm Shallow Subwoofer with RSST12 Enclosure and Installation Kit

The 3512-04S shallow-mount subwoofer brings 12-inch bass to vehicles where installation depth is limited. Its single 4-ohm voice coil handles 300 W RMS and 600 W peak, with a recommended amplifier range of 150-300 W RMS. A 3.375-inch mounting depth helps it fit tighter locations, while the Inverted Apex surround moves more air and the progressive suspension controls excursion to reduce distortion. Spider Plateau Venting directs cool air toward the voice coil to help manage operating temperature. The bundle leads with the subwoofer, then adds an RSST12 sealed shallow enclosure and basic installation pieces: 12 feet of 14 AWG blue speaker wire, two spade terminals, and ten metal wood screws. The enclosure is built from 5/8-inch MDF with glued and stapled joints plus silicone along its seams. It provides a practical starting point for a compact vehicle bass installation, with enclosure specifications to verify before mounting: the subwoofer lists a recommended sealed volume of 0.8 cu ft, while the supplied enclosure lists 0.9 cu ft net.