Description
RockvilIe MS12LB 12″ Marine Free Air Subwoofer with LED's. Free air subwoofer does not require any enclosure. 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 (if you literally jump on it, it will not break or bend). 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 The MS12LB is one of the most powerful marine subwoofers on the market. What really makes this sub stand out is the sound quality and durability. It goes so loud that if you crank it up, boats that are thousands of feet away can feel the bass. The frequency range of these subs are so good that it will make all your songs sound so much better! These play frequencies that normal full range speakers cannot hit, adding depth and richness to all your music.
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