Dual 4 ohm 2"e; High-Temperature Voice Coil 2100 Watts MAX 1050 Watts RMS Power Handling 89dB Sensitivity 25 Hz Resonant Frequency Polypropylene Cone Foam Surround 2.0 CuFt Sealed 2.98 CuFt Ported Enclosure Mounting Depth: 7"e;