JBL S-Center II Studio Series 3-Way Center-Channel Speaker (Dark Gray) (Discontinued by Manufacturer) 3-way center channel speaker with a host of audio-enhancing JBL technologies; 20.5 x 7.785 x 9 inches (W x H x D) One 4-inch woofer, one 5.25-inch woofer, and a 1-inch titanium-dome tweeter 150 watts maximum power handling, high 91 dB sensitivity for great sound, even from lower-power amplifiers Shielded components allow distortion-free placement near TVs and computer monitors 75 to 20,000 Hz frequency response; FreeFlow flared port increases bass response without adding unwanted port noise