Alpine W12S4, Bass Series Single 4 Ohm Voice Coil 12" Subwoofer - 750W

BASS FOR ALL The 2017 BASS subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS. PERFORMANCE: EFFICIENCY & TIGHT BASS An optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency. This means tighter bass control and more output! | Size 12-inch Voice Coil Single Impedance 4 ohms RMS Power Rating (Watts) 250 Peak Power Rating (Watts) 750 Cone Material Polypropylene and Mica Surround Material Polyurethane Foam Free Air No Sensitivity 87.9 dB at 1 Watt Frequency Response 22-200hz Top Mount Depth (Inches) 5 5/16 Bottom Mount Depth (Inches) Cutout Diameter (Inches) 10 9/16 Vas (liters) 64.3 Fs (Hz) 30 Xmax (millimeters) 10 Warranty 1 Year