Definitive Technology Dymension DM30Center channel speaker with built-in 8" powered subwoofer

Powerful bass from a large center channel speaker

Definitive Technology's Dymension DM30 takes your home theater's center channel performance to places that most speakers just can't — namely, into the realm of deep bass. It sports an 8" upward-firing woofer driven by a 180-watt amplifier, plus two 8" upward firing passive radiator cones to control and further extend low-frequency response. That means you can set the center channel to "full range" in your A/V receiver, and this speaker will reproduce the bass frequencies in on-screen effects, voices, and soundtrack music.

At over 30" wide and nearly 16" deep, this is a sizeable center channel, so please check to see if you have enough space for it in your setup.

An X-ray view of the DM30's high-tech driver array, including an upward-firing powered subwoofer

High-tech tweeter and mid woofers

Firing from the speaker's front baffle are a total of five additional drivers, including a 1" aluminum oxide dome tweeter and four 5-1/4" woofers. The tweeter's Teteron (cloth) suspension helps it produce smooth, extended highs. And the woofers use advanced Balanced Dual Surround System (BDSS) technology for control and clarity.

The DM30 is a particularly good match for larger powered towers (each with their own built-in powered sub) in Definitive's Dymension Series, like the DM70 or flagship DM80.

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.