Price Match Guarantee Definitive Technology Dymension DM30 Center Channel Speaker with Built-In 8" Powered Subwoofer Level up your home theater audio with the Definitive Technology Dymension DM30 Flagship Center Channel Speaker - a hi-tech center speaker that delivers impressive performance in any home stereo system. This speaker features four 5.25" Balanced Double Surround System midrange woofers to improve excursion and produce better midrange detail. Its 1" custom aluminum oxide tweeter for e