Yamaha NS-C125 2-Way Bass-Reflex Center Channel Speaker (Discontinued by Manufacturer) High-quality 2-way bass-reflex center channel speaker for surround sound systems Dual 3.15-inch white polymer cone woofers and 1-inch balanced dome tweeter 70 Hz to 35 kHz frequency response; magnetically shielded to prevent video interference Slim profile matches flat-panel and plasma TVs; screw-type speaker terminals 120 watts max input power (40 watts nominal); 13.4 by 4.1 by 5.2 inches (W x H x D)