18-in Low Riderr Subwoofer * Impedance: 8 Ohms * Power Capacity: 3200 Peak 1600 W Program 800 W Continuous * Sensitivity: 93.7 dB / 1 W 1 m * Usable Freq. Range: 25 Hz - 1 kHz * Cone: Kevlarr impregnated cellulose * Voice Coil Diameter: 4.0-in / 100