Rockville MS12LB 12" 2800 Watt Black Marine/Boat 12" Free Air Subwoofer w/LED's

Rockville MS12LB 12" 2800 Watt Black Marine/Boat 12" Free Air Subwoofer w/LED's

Rockville MS12LB 12" marine subwoofer with LED. Max Power: 2800 Watts. RMS Program Power: 1400 Watts. RMS Power: 700 Watts. Polypropylene cone with Rubber edge. 2.0" 4 Layer dual voice coil. Molded ABS plastic basket made with a special blend that is waterproof and un-breakable. Magnet: 100 Oz double stacked magnet. Frequency response: 20Hz-4Khz. Impedance: Dual 4 Ohm. Sensitivity: 90dB. Total diameter:12.8"; Cutout diameter:11"; Mounting depth:6.1" Free Air Resonance (Fs): 25.82 Hz. Electrical "Q" (Qes): 0.5402. Mechanical "Q" (Qms): 3.334. Total Speaker "Q" (Qts): 0.4649. Equivalent Compliance (Vas): 4.19 cu ft / 118.67 L. One-Way Linear Excursion (Xmax): 0.41 in / 10.5 mm. Reference Efficiency (No): 0.36%. Efficiency (1 W / 1 m): 88 dB SPL. Effective Piston Area (Sd): 79.2 sq in / 0.0511 sq m. DC Resistance (Re): 3.4 Ohms. Nominal Diameter: 12.0 in / 300 mm. Overall Diameter: 12.8". Mounting Hole Diameter: 11 in / 279 mm. Bolt Hole Circle Diameter: 11.6 in / 295 mm. Mounting Depth: 6.1". Net Weight: 13.45 lb / 6.1 kg