Bass Reflex Speakers 3 Way Speaker System ABS Sealed Plastic Enclosure 3 1/4-Inch Woofer/2-Inch Midrange/1-Inch Tweeter 200 Watts Peak Power Frequency Response: 70-21kHz SPL: 94dB 4 Ohm Impedance Complete Mounting Kit & Wires 71/4-Inch W x 41/4-Inch H x 51/4-Inch D