2) KICKER 45KMF124 12" 350w Free-Air Marine Boat Subwoofers+Mono Amplifier+Wires

This package pairs two Kicker 45KMF124 12-inch free-air marine subwoofers with a Rockville dBM12 mono amplifier and a full 4 AWG wire kit, adding deep bass to a boat without the space a sealed or ported box requires. The KMF124's free-air design mounts directly into an existing cavity, using an injection-molded polypropylene cone, a co-molded Santoprene surround, and a rear gasket that seals against moisture without a dedicated enclosure. Stainless mounting hardware and a protective terminal cap add long-term corrosion resistance for salt air and spray. Power comes from the dBM12, a mono Class D amplifier rated at 2000 watts peak and 500 watts Dyno-Certified RMS at 2 ohms, with a conformal-coated circuit board, waterproof silicone terminal covers, and a rustproof aluminum heat sink built specifically for the water. An included bass remote lets you adjust low end from the dash instead of reaching for the amp. The RMWK4 wire kit completes the install with waterproof 4-gauge power and ground cable, RCA cable, speaker wire, remote wire, and a fused mini-ANL fuse holder, covering the full run from battery to amplifier to subwoofer. This combination suits a boat that wants a bigger 12-inch driver's output without giving up the storage or deck space a traditional enclosure would take.