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Definitive Technology Dymension DM40 Passive Slim Bipolar Tower Speaker

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    Definitive Technology Dymension DM40 Passive Slim Bipolar Tower Speaker

    Item #: DT-DYMENSION-DM40

    Definitive Technology Manufacturer Part #: DYMENSION DM40


    Definitive Technology
    Speaker Type:
    Floor-Standing Speakers
    Number of Included Speakers:
    Frequency Response:
    38 Hz-30 kHz ( ±10 dB)
    55 Hz-23 kHz ( ±3 dB), 55 Hz-23 kHz
    Recommended Amplifier Power:
    50-250, 50-250W
    Speaker Configuration:
    5 Years
    4 Ohms
    87 dB
    2x 1" / 25.4 mm Aluminum Tweeter
    4x 4.5" / 114.3 mm Composite/Polymer Cone Mid-Woofer
    High-Frequency Drivers:
    1" Hard-Dome
    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 DM40 Slim Bipolar Tower Speaker

    Room-Filling Sound

    Dymension™ DM40 tower speakers deliver dynamic, room-filling sound with robust bass by leveraging Definitive Technology’s signature bipolar arrays.

    Spacious, Immersive Soundstage

    Anatomy of an
    Iconic Speaker

    The Dymension DM40 fills your home theater with larger-than-life sound. Crystal clear highs, incredible depth-of-field, and robust bass envelop you whether you’re enjoying the latest blockbuster film or your favorite songs. Innovations include aluminum oxide tweeters, an adjustable bipolar array, and an acoustically optimized enclosure.

      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
      for smooth, detailed

      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
      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.

      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 DM40 speakers on virtually any floor surface, providing acoustic isolation and stability.


      Dimensions (H x W x D)37.4 x 10.3 x 10.0 in. (950 x 261 x 255 mm)
      Weight38.1 lbs (17.3 kg)
      Grille MaterialAcoustically transparent black cloth (not removable)
      Tweeter(2) 1 in. aluminum oxide domes
      Midrange/Midbass(4) 4.5 in. woofers
      Enclosure TypePorted
      Bipolar ArrayFully balanced, adjustable
      Bipolar Array AdjustmentRear tweeter switch: 0dB, -6dB
      Frequency Response38 Hz–30 kHz (-10dB)
      55 Hz–23 kHz (-3dB)
      Nominal Impedance4Ω (8Ω compatible)
      Sensitivity87dB (2.83V/1m)
      Recommended Amplifier Power Rating50-250W
      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
      5 Years
      Global Name
      TCO Certified
      "2-Way Bi-Polar Speaker Design","Front- & Rear-Facing Driver Arrays","4 x 4.5" Cone Woofers","2 x 1" Dome Tweeters","50 to 250W Recommended Amplifier","4-Ohm Impedance","Pairs with Other Definitive Speakers","Acoustically Transparent Grille Cloth","4 x Spikes for Carpeted Flooring","4 x Glides for Hard Flooring"
      Built-In TV Tuner
      UPC/GTIN/EAN: 747192137120
      Price: $999.00

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      Definitive Technology DYMENSION DM40 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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      What does that mean for you as the customer? It is very likely that the manufacturer may not honor your products warranty, or that your product was never intended for the US market to begin with.

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