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Definitive Technology Dymension DM70 Large Bipolar Tower Speaker With 10" Powered Class D Subwoofer

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Definitive Technology Dymension DM70 Large Bipolar Tower Speaker With 10" Powered Class D Subwoofer


Definitive Technology Manufacturer Part #: DYMENSION DM70


Definitive Technology
Speaker Type:
Floor-Standing Speakers
Frequency Response:
25 Hz to 30 kHz (-10 dB)
30 Hz to 23 kHz (-3 dB)
Recommended Amplifier Power:
50 to 300 W
Speaker Configuration:
4 Ohms
90 dB
2x 1" / 25.4 mm Aluminum Tweeter
4x 5.25" / 133.35 mm Composite/Polymer Cone Mid-Woofer
Subwoofer Drivers:
1x 10" / 25.4 cm
Best Used For:


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Expert reviews

"At Sound United (Marantz, Denon, Definitive Technology, Polk), part of our mission to “Bring Joy to the World Through Sound” includes the enormously valuable partnerships we maintain with trusted channel partners like / Next Projection. We share an unrelenting passion with a common goal in mind: to engage and educate our audience with the highest level of integrity and deliver a best-in-class experience with world-class products and unparalleled customer service. The Next Projection team of experts delivers EVERY step of the way!"

Paul LaPlaca Director of Sales
Sound United
Sound United

Dymension DM70 Large Tower Speaker

Spacious, Room-Filling

Dymension™ DM70 tower speakers deliver dynamic, room-filling sound with extended bass by leveraging Definitive Technology’s signature bipolar arrays, proprietary drivers, and integrated 10" subwoofers.

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
    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
    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.

    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.

    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.

    Stability and versatility for flexible placement

    Included cabinet foot spikes and pads provide the ideal way to place and level DM70 speakers on virtually any floor surface, providing acoustic isolation and stability.


    Dimensions (H x W x D)47.4 x 11.3 x 16.0 in. (1204 x 287 x 407 mm)
    53.4 x 11.3 x 16.0 in. (1356 x 287 x 407 mm)
    w/ optional DM90 height module, sold separately
    Weight74.1 lbs (33.6 kg)
    Grille MaterialAcoustically transparent black cloth (not removable)
    Tweeter(2) 1 in. aluminum oxide domes
    Midrange/Midbass(4) 5.25 in. BDSS™ with Linear Response Waveguide™
    Bipolar ArrayFully balanced, adjustable
    Bipolar Array AdjustmentRear tweeter switch: 0dB, -6dB
    Subwoofer System Driver Complement(1) 10 in. subwoofer
    (2) 10 in. passive radiators
    Frequency Response25 Hz–30 kHz (-10dB)
    30 Hz–23 kHz (-3dB)
    Nominal Impedance4Ω (8Ω compatible)
    Sensitivity90dB (2.83V/1m)
    Recommended Amplifier Power Rating50-300W
    Subwoofer Amplifier250W (Peak) Class D
    Intelligent Bass ControlVariable +12dB/-15dB
    Warranty2 years
    Included Accessories• (4) Adjustable hard floor glides
    • (4) Adjustable carpet spikes

    Product Documentation

    Information Sheet
    Owner's Manual
    Best For:
    Light Type
    Lamp Life
    Throw Type
    Aspect Ratio
    Projection Method
    Resolution Type
    Native Resolution
    Contrast Ratio
    Color Gamut
    Picture Modes
    3D Support
    Color Processing
    Display Color
    Supported Resolutions
    Dynamic Iris
    Screen Size
    Throw Ratio
    Throw Distance
    Lens Shift
    Digital Keystone
    Included Lens
    Optional Lens
    Focus (Motorized/Auto /Manual)
    Digital Zoom
    Color Wheel
    Input Lag
    Refresh Rates
    Game Mode
    Built-In Speakers
    Dolby Atmos Compatible
    Smart TV
    Operating System
    Built-In Apps
    Web Browser
    Voice Recognition
    Smart Home
    1x Binding Post Pair Input
    Screen Share / Screen Mirroring
    Optional Accessories
    Compatible Mounts
    Dimensions and Design
    Projector Size
    Projector Weight
    Case Color
    Power and Enviroment
    Audible Noise
    Battery Life
    Aditional Information
    Release Date
    Global Name
    TCO Certified
    "3-Way Bi-Polar Speaker Design","Front- & Rear-Facing Driver Arrays","4 x 5.25" Cone Woofers","2 x 1" Dome Tweeter","10" Subwoofer with 2 x 8" Radiators","50 to 300W of Audio Power","250W Peak Class-D Amplifier","Pairs with other Definitive Speakers","3XR-Optimized Architecture","Top Port for Optional DM90 Height Module"
    Built-In TV Tuner
    UPC/GTIN/EAN: 747192137168
    Price: $1,999.00

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    Definitive Technology DYMENSION DM70 Reviews

    CPS Warranty Included

    Purchase this product worry-free with a complimentary 2-year extended warranty from CPS with ACCIDENTAL DAMAGE protection. Want even more coverage? Upgrade to a 3 or 4 year at a discounted price.

    Manufacturer’s Pricing Policy

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    If you have any questions regarding a specific product, please do not hesitate to contact us at (888) 392-4814.