Precision Power SN.12 500W 12-Inch Sedona Series Single 4 Ohm Subwoofer, Set of 1 Power Handling: Peak: 1200 watts/RMS: 350 watts Polypropylene cone: Poly-cotton suspension spiders & Polly conical cone dust-cap Nickel plated 8 gauge compression terminals Resonance Frequency (Fs): 33 Hz Sensitivity: 92dB