Acoustech HT-65 High-Efficiency Horn-Loaded Center Speaker, High-Gloss Black High-efficiency 2-way center channel speaker for home theater systems Dual 6.5-inch graphite-injected cone woofers and 6.5-inch horn tweeter system 55 Hz to 20 kHz frequency response; 96 dB sensitivity and 8-ohm impedance Recommended power handling of 10 to 150 watts; high-gloss black finish Measures 22 by 8 by 6 inches (W x H x D); 5-year warranty