Fully Balanced, Adjustable Bipolar Array for a spacious, immersive soundstage

Bipolar driver arrays direct more sound in more directions than traditional speakers, for incredible depth-of-field and a truly enveloping listening experience. Adjustable to optimize for room placement.

Long-Throw Midrange Woofers for smooth, detailed response

DM40’s four 4.5" woofers feature composite polymer cones that produce superior midrange detail. Long-throw surrounds optimize driver excursion for improved low-end performance.

Ported Enclosure with Column Resonance Control for robust bass response

A tuned cabinet features acoustically optimized chambers for improved bass extension and midrange clarity.

Aluminum Oxide Tweeters for crystal clear highs

New driver designs provide smooth extended response with crisp transients, exceptional definition, and pinpoint-precise imaging, for incredible clarity and lifelike realism.

Slim Cabinet Design for unobtrusive integration into rooms

The DM40’s slim footprint makes it easy to integrate into virtually any room setting. And, it looks as good as it sounds.

The Ultimate Atmos Experience for immersive sound that pulls you inside the action

Build a system that brings movie-theater thrills home with stunning sound enveloping you from every angle, transporting you inside every scene and song.

Wall-Mountable Surround Speaker/Height Module for unforgettable Atmos experiences

Available separately, this Atmos- and DTS:X-compatible, wall-mountable surround speaker extends sound above you, for total sonic immersion with hyper-realistic overhead effects.

Timbre-Matched for seamless Definitive Technology sound

Consistent sound across other Definitive Technology series gives you the flexibility to mix and match Dymension and all Definitive Technology in-wall and in-ceiling speakers to design your dream home theater and whole-home system.