Product Description 10" 4-ohm subwoofer Pearl mica injection-molded polypropylene woofer cone with urethane foam surround Overlapping ribs on cone surface for improved rigidity and dampened resonance Extended pole piece and bumped back plate for increased cone excursion Power range: 35-350 watts RMS Peak power: 700 watts Frequency range: 28-800 Hz Sensitivity: 91 dB SUB - W2509 10'' 4-ohm 700Watts Component Subwoofers has been presented above, want more similar products, please click Component Subwoofer.