Pyle PLPPS210 Pyle Power Dual 10-Inch Subwoofer Enclosure - Slim Design Forward Firing Vented System - Set of 2 (Discontinued by Manufacturer) Dual 10" High Power Subwoofer - 4 Ohm Impedance Black Molded Polypropylene Cone - 400 Watts RMS / 800 Watts Peak 2" Voice Coil - Frequency Response: 40Hz - 4kHz Foward Firing Slot Port - SPL: 90dB 30 oz. Magnet Structure