Pyramid PP12 Dual 12-Inch 300 Watt 4Way Stereo Hatchback Speaker System Full Stereo Output High Quality MDF Carpeted Enclosure Each PP12 Contains: Two 12'' Polymer Laminated High Power Woofers Two 3.4" Super Horn Piezo Tweeters Twin Bass Reflex Vents for Added Bass Response Quick Connect Input Terminals 2 Steel Black Waffle Grills; 4 Ohm Impedance Frequency Response: 30Hz-36kHz Power Handling: 150 Watts per Channel; SPL: 107dB @ 1W/1M Dimensions: 29''L x 12''H x 6.5''W