Kicker 05C124 12" Comp Series Subwoofer, 4-Ohm Kicker 05C124 12" Comp Series Subwoofer Peak Power Handling 300 watts RMS Power Handling 150 watts Voice Coil(s) Single Impedance (Per Voice Coil) 4 ohms Frequency Response 27 - 500 Hz Sensitivity 89 Subwoofer Design Round / CircleCone Color Black