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Dymension™ DM70 

Large Bipolar Tower Speaker with Built-In 10" Powered Subwoofer



Spacious, Immersive Soundstage

Anatomy of an Iconic Speaker

The Dymension DM70 fills your home theater with larger-than-life sound. Crystal clear highs, incredible depth-of-field, and thunderous bass envelop you, whether you’re enjoying the latest blockbuster film or your favorite songs. Innovations include aluminum oxide tweeters, an adjustable BDSS bipolar array, and an integrated powered subwoofer with 3XR technology.



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.



BDSS System and Linear Response Waveguide
for smooth midrange and lifelike imaging

Our patented Balanced Double Surround System (BDSS) technology improves the midrange and provides a uniform soundstage with seamless bass and mid integration. A Linear Response Waveguide™ extends and smooths off-axis dispersion for great sound everywhere in the room.



Built-In 10" Powered Subwoofer for thunderous bass

An integrated 10” subwoofer, powered by an all-new, high-performance Class D amplifier, delivers clean, detailed bass that perfectly blends with mids and highs and feels consistent no matter where you sit.



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.



3XR Architecture with Dual Passive Radiators for seamless, balanced bass

3XR Architecture combines a subwoofer and two passive radiators to produce huge, balanced bass that you can feel, with less distortion than traditional ported designs.



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

Bring the thrills of the movie-theater experience home with stunning sound enveloping you from every angle, transporting you inside every scene and song.


Cinematic Movie Magic

Get swept away by the action onscreen as you’re enveloped in a deep, defined soundstage. From a whisper to a roar, experience it all in striking realism.


A Concert in Your Living Room

Fully balanced bipolar arrays fill the entire room with enveloping sound. Your speakers seem to vanish as you hone in on every voice and pinpoint every instrument - just like being there live.


Level Up Your Gaming Environment

Whether you’re fighting evil or exploring new universes, unlock the ultimate experience when you hear sonic details in dazzling new dimensionality.



DM90 Integrated Height Module Option
for unforgettable Atmos experiences

Available separately, a DM90 Atmos-certified and DTS:X-compatible height module connects to the top of the DM70 to extend sound above you for total sonic immersion and hyper-realistic overhead effects.



Patented Intelligent Bass Control
for precise low-end tuning

Bass will never get in the way of dialogue and other critical soundtrack elements. Sophisticated digital processing seamlessly blends subwoofer output with mids and highs to provide powerful deep-bass performance without sacrificing midrange clarity.

Definitive Technology DM70 Floorstanding Speaker - Pair

  • Design: Bipolar Floorstanding Speaker with Built-in 10" Powered Subwoofer (180W)



    • (2) 1" Aluminum Oxide Domes


    Midrange / Midbass 

    • (4) 5.25 in. BDSS™ with Linear Response Waveguide™


    Bipolar Array

    • Fully-balanced, adjustable

    Bipolar Array Adjustment

    • Rear tweeter switch: 0dB, -6dB


    Subwoofer System Driver Complement

    • (1) 10 in. subwoofer

    • (2) 10 in. passive radiators


    Frequency Response

    • 25 Hz–30 kHz (-10 dB)

    • 30 Hz–23 kHz (-3 dB)


    Nominal Impedance : 4Ω (8Ω compatible)


    Sensitivity : 90 dB (2.83V/1m)


    Recommended Amplifier Power Rating : 50 - 300 watts  


    Subwoofer Amplifier : 250W (Peak) Class D 


    Intelligent Bass Control : Variable +12dB / -15dB


    Dimensions : 47.4"H x 11.3"W x 16"D 


    Dimensions : 53.4"H x 11.3"W x 16"D

                           (with optional DM90 height module, sold separately)



    Product Weight : 74.1 Lbs. 


    Color : Black


    Grille Material : Acoustically transparent black cloth (not removable)


    Included Accessories : 

    • 4 adjustable hard floor glides,

    • 4 adjustable carpet spikes




    All specifications are subject to change without notice.


    • Fully balanced bipolar driver array for truly enveloping sound


    • Built-in 180W 10" subwoofer with dual 3XR bass radiators


    • Aluminum oxide tweeter produces crisp, sparkling highs


    • 5.25" BDSS drivers provide balanced sound, wide listening area


    • Atmos/DTS:X ready - add optional DM90 height module


    • Patented Intelligent Bass Control for seamless integration


    • Rear-array attenuation switch for near-wall placement


    • Timbre-matched with other Definitive Technology speakers


    • Foot spikes and pads allow versatile placement and leveling


    • Understated design disappears into the room when the lights are low

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