HIGH POWER WOOFER 200W 10" Frequency Response Max: 4000Hz Frequency Response Min: 30Hz Impedance: 8ohm Power Rating RMS: 200W Resonant Frequency: 33Hz External Diameter: 265mm Magnet Diameter: 145mm Peak Music Power Output: 200W Sound Level SPL: 94dB A high power 10" general purpose woofer offering the highest efficiency for a wide range of purposes. With an extra large vented magnet and an inverse long life rubber surround. The speaker can generate 200W of music power.