Top Rated Gear

Definitive Technology Dymension DM40 Floorstanding Speaker, Black

SKU: DEDYDM40 MFR: 300567-01-00-005
Earn VIP Reward Points

Key Features

  • Experience immersive audio with Definitive Technology floor standing speakers.
  • Enjoy a wide soundstage with the DM40's bipolar array speaker design.
  • Optimize sound with adjustable rear tweeter; fine-tune to your room.
  • These slim speakers enhance your home theater aesthetics without bulk.
  • Get powerful bass from 4.5" woofers, perfect for music and movies.
  • Compatible with 8 Ohm amps; these speakers offer flexible connectivity.
See More Product Details
Special Order?Estimated to Ship: 08/15/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

2 Year

$59.99

3 Year

$84.99

4 Year

$109.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

2024-02-11T19:00:00

Rated 5 out of 5

Awesome Sound Sleek Design

I am so happy I bought these speakers. They are a huge upgrade from my old Philips bookshelf speakers. These towers may look small but the sound is beautiful. The highs are super crisp, mids are great, and when you crank it up there is not distortion or less of detail in the sound. And as suggested in the website, they fill up the whole room with sound. Everything seems so immersive now. It is like Listening to my music and movies again for the first time .

SlickRick

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Definitive Technology Dymension DM40 Specifications

  • Color

    Black

  • Grille Material

    Acoustically transparent black cloth (not removable)

  • Tweeter

    2x 1" aluminum oxide domes

  • Midrange/Midbass

    4x 4.5" woofers

  • Enclosure Type

    Ported

  • Bipolar Array

    Fully balanced, adjustable

  • Bipolar Array Adjustment

    Rear tweeter switch: 0dB, -6dB

  • Frequency Response

    38 Hz-30 kHz (-10dB)
    55 Hz-23 kHz (-3dB)

  • Nominal Impedance

    4 Ohm (8 Ohm compatible)

  • Sensitivity

    87dB (2.83V/1m)

  • Recommended Amplifier Power Rating

    50-250W

  • Dimensions (H x W x D)

    37.4 x 10.3 x 10.0" (950 x 261 x 255mm)

  • Weight

    38.1 lbs (17.3kg)

  • UPC Code

    747192137120

About Definitive Technology Dymension DM40

FEATURED REVIEWS

Awesome Sound Sleek Design

By SlickRick

I am so happy I bought these speakers. They are a huge upgrade from my old Philips bookshelf speakers. These towers may look small but the sound is beautiful. The highs are super crisp, mids are great, and when you crank it up there is not distortion or less of detail in the sound. And as suggested in the website, they fill up the whole room with sound. Everything seems so immersive now. It is like Listening to my music and movies again for the first time .

Dymension DM40 Slim Bipolar Tower Speaker - Incredible, Room-Filling Sound
Dymension DM40 tower speakers deliver dynamic, room-filling sound with robust bass by leveraging Definitive Technology's signature bipolar arrays.

• Shockingly Spacious Sound: The fully balanced, adjustable bipolar driver array fills the room with enveloping sound
• Robust Bass: The tuned, ported cabinet is acoustically optimized for improved bass response and midrange clarity
• Crystal Clear Highs: An aluminum oxide tweeter delivers smooth, crisp, sparkling highs throughout the room

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 Woofers for smooth, detailed response
M40'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
Bring the thrills of the movie-theater experience home with stunning sound enveloping you from every angle, transporting you inside every scene and song.

Movies - 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.

Music - 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.

Games - 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.

DM95 On-Wall Surround Speaker 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.

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.

Definitive Technology Dymension DM40 Features

  • Fully balanced bipolar driver array for truly enveloping sound
  • Acoustically optimized, ported enclosure for smooth bass and clear midrange
  • Aluminum oxide tweeter produces crisp, sparkling highs
  • 4.5" long-throw drivers deliver detailed, balanced sound with superior low end
  • Atmos/DTS:X ready-add optional DM95 surround speaker
  • Slim cabinet design for unobtrusive room integration
  • Rear-array attenuation switch for near-wall placement
  • Timbre-matched for use with other Definitive Technology speakers
  • Foot spikes and pads allow versatile placement and leveling
  • Understated design disappears when the lights are low

Key Features

  • Experience immersive audio with Definitive Technology floor standing speakers.
  • Enjoy a wide soundstage with the DM40's bipolar array speaker design.
  • Optimize sound with adjustable rear tweeter; fine-tune to your room.
  • These slim speakers enhance your home theater aesthetics without bulk.
  • Get powerful bass from 4.5" woofers, perfect for music and movies.
  • Compatible with 8 Ohm amps; these speakers offer flexible connectivity.

What's in the box:

  • Definitive Technology Dymension Series DM40 2-Way Slim Bipolar Floorstanding Speaker (Black)
  • 4x Adjustable Hard Floor Glides
  • 4x Adjustable Carpet Spikes
  • Definitive Technology 2 Year Limited Warranty