The JL Audio M7 12" Marine Subwoofer with Gloss White Classic Grille sets the standard for marine subwoofer performance, delivering powerful, jaw-dropping bass in infinite-baffle applications. Built to endure marine environments, it features a 4-inch voice coil and robust suspension for high output and excellent power handling. The M7-12IB is optimized for use with amplifiers in the 200W-600W range and requires at least 3 cu. ft. of air behind it for optimal performance.• Reference-grade marine subwoofer for exceptional bass performance• 4-inch voice coil and rugged suspension for high output• Infinite-baffle design, no dedicated enclosure required• Best with 200W - 600W amplifier power• Built to withstand saltwater marine environments• Optimized for 3 cu. ft. of air for optimal performance• Sold individuallySpecsContinuous Power Handling (RMS): 600wSystem Nominal Impedance: 4 ohm Grille & Trim Ring are easily removable for painting Exceeds International Standards for Salt Fog & UV Exposure 2-Year Warranty | JL Audio M7 12" Marine Subwoofer w/ Gloss White Classic Grille