3512-04S 12" Shallow Mount Subwoofer, Amplifier & Amp Kit

This bundle pairs the MTX 3512-04S, a 12 inch shallow mount subwoofer, with a Rockville RXA-T1 2-channel amplifier and an RWK81 8-gauge wiring kit, giving you a complete bass upgrade without digging through separate listings for a sub, a power source, and the wire to connect them. The 3512-04S uses a single 4-ohm voice coil and a 3.375 inch mounting depth, so it fits in trucks, sports cars, and everyday vehicles where a standard subwoofer would eat too much trunk space. Its Inverted Apex surround adds cone surface area for higher output, and Spider Plateau Venting pulls cool air across the voice coil so the sub keeps its tone under long listening sessions.

The RXA-T1 powers it with 1,500 watts peak and 370 watts RMS bridged at 4 ohms, plenty of headroom for a single 300-watt RMS sub with room to spare. High-level inputs mean the amp installs behind a factory head unit with no preamp outputs, and auto-start turn-on skips the extra remote wire run. The RWK81 kit rounds it out with 8-gauge power and ground cable, twisted-pair copper RCAs, and a 60 amp fuse, so the electrical side of the install is already sorted. Good for anyone building a first serious bass system in a car that does not have much room to spare under the seat or in the trunk.