Jensen C990 Champion Series 3-Way Tower Speakers (Pair) Pair of 3-way floorstanding tower speakers for stereo or home theater use 8-inch cellulose woofer, dual 4-inch cellulose mids, and 1.18-inch soft-dome tweeter per speaker 55 Hz to 20 kHz frequency response; efficient 88 dB sensitivity rating Recommended for use with amps with 10 to 150 watts output power per channel Each measures 5.75 by 33.5 by 11.5 inches (W x H x D); 5-year warranty