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Definitive Technology DYMENSION DM30 Center Channel Speaker With Integrated Subwoofer and Bass Radiators

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Dymension | DM30
The Dymension™ DM30 flagship center channel speaker combines a five-driver array with an integrated subwoofer and 3XR-optimized bass radiators to deliver full-range performance with superior vocal clarity and maximum bass impact. It’s the ultimate centerpiece for immersive home theater and music systems.


Advanced Five-Driver Array
Four 5.25" BDSS midrange woofers and a 1" aluminum oxide tweeter deliver ultra-clear vocals with uncanny realism.

Built-In 8" Powered Subwoofer
An integrated 8" powered subwoofer delivers clean, detailed bass that perfectly blends with mids and highs, anchoring voices and effects with rich, full-range sound.

3XR Architecture with Dual Bass Radiators
3XR™ Architecture—introduced in our flagship Descend Series— combines a subwoofer and two passive radiators to produce huge, impactful bass that’s unrivaled in a center channel speaker.

BDSS System and Linear Response Waveguide
Midrange woofers feature Definitive’s Balanced Double Surround System™ (BDSS), which improves excursion and provides superior midrange detail. Our patented Linear Response Waveguide™ extends off-axis dispersion for total sonic immersion.

Patented Intelligent Bass Control
Sophisticated digital processing seamlessly blends subwoofer output with mids and highs to provide powerful deep-bass performance without impacting midrange clarity.

Consistent sound across other Definitive Technology series gives you the flexibility to mix and match Dymension™, Dymension CI, and Mythos speakers to design your dream home theater and whole home system.


  • Five-driver array for rich, full-range center channel sound
  • Built-in powered subwoofer for deep, seamless low end
  • Aluminum oxide tweeter brings crisp highs and ultra-clear speech
  • BDSS™ woofers deliver superior midrange detail
  • Linear Response Waveguide™ extends dispersion
  • 3XR™ Architecture with passive radiators delivers max bass impact
  • Intelligent Bass Control for smooth integration
  • Acoustically transparent, black grille cloth virtually disappears into the room
  • Timbre-matched with Definitive Technology speakers


  • Dimensions (H × W × D): 7.5 in. × 31.5 × 15.9 in, 190 × 800 × 403 mm
  • Weight: 54 lbs (24.5 kg)
  • Color: Black
  • Grille Material: Acoustically transparent black cloth (not removable)
  • Tweeter: (1) 1 in. aluminum oxide dome
  • Midrange/Midbass: (4) 5.25 in. BDSS with Linear Response Waveguide
  • Subwoofer System Driver Complement: (1) 8 in. subwoofer (2) 8 in. passive radiators
  • Frequency Response: 36 Hz–30 kHz (-10db) 41 Hz–23 kHz (-3db)
  • Nominal Impedance: 6Ω (8Ω compatible)
  • Sensitivity: 93dB (2.83V/1m)
  • Recommended Amplifier Power Rating: 50–300W
  • Subwoofer Amplifier: 250W (Peak) Class D
  • Intelligent Bass Control: Variable +12dB/-15dB
Center Channel Speakers
Center Channel Speakers

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