Definitive Technology Dymension DM30 Center channel speaker with built-in 8" powered subwoofer

Product highlights: high-performance center channel speaker with built-in 8" powered subwoofer cloth grille-wrapped enclosure 1" aluminum oxide dome tweeter with Teteron (cloth) suspension for smooth, extended highs four 5-1/4" BDSS mid/bass drivers Balanced Dual Surround System (BDSS) driver technology places rubber surrounds on both the outer and inner edges of each speaker cone for improved control and clarity Linear Response Waveguide reduces the woofer's back wave for smoother midrange response Built-in powered subwoofer: one 8" active woofer two 8" passive radiators increases the sound-radiating surface area for enhanced bass output patented Intelligent Bass Control provides precise bass level adjustments while maintaining accurate midrange tonal balance 180-watt built-in Class D amplifier for the built-in sub Specs: frequency response: 41-23,000 Hz (-3dB) recommended amplifier power: 50-300 watts sensitivity: 93 dB impedance: 6 ohms Other info: binding post connectors dimensions (measured by Crutchfield): 31-1/2"W x 7-1/2"H x 17-3/8"D 54 lbs. warranty: 5 years speakers, 3 years electronics MFR # 300566-01-00-101