Audiobahn AWP 310 X 10" Pro Compression Piston Subwoofer Audiobahn AWP 310 X 10" Pro Compression Piston Subwoofer assive 180 oz. Double Stacked Strontium Magnets Power Handling: 1000 Watts RMS Frequency Response: 22 Hz - 500 Hz Efficiency: 93.8 dB