Definitive Technology Dymension DM40 is a 2-way Passive Bass Reflex Floor-standing speaker with Bipolar Driver Array by Definitive Technology. It features a 1" 2 x Hard-Dome Tweeter and 4 x 4.5" Polypropelene Woofer. The speaker has a frequency range of 55-23 kHz and a sensitivity of 87 dB. Definitive Dymension DM40 has an MSRP of 1998$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive Dymension DM40 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Bad |
| Small Room | Poor |
| Mid-size Room | Average |
| Large Room | Good |
| Very Large Room | Average |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
Definitive Dymension DM40 Lifestyle
Definitive Technology's Dymension Series of Loudspeakers
Dymension DM40 is a member of Definitive Technology's Dymension series of Passive speakers. Below you can see the main specs of these speakers.
Definitive Technology Dymension Series Speakers
Definitive Technology Dymension Series Speakers
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Frequency Response of the Definitive Dymension DM40 Speaker
Definitive Dymension DM40 has a Frequency response range of 55-23 kHz at ±3dB and Power Range of 50-250 watts. With a minimum frequency of 55 Hz, Dymension DM40 delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.
To focus on the subwoofers that are in a similar price range with Definitive Dymension DM40, check out the Powered Subwoofers under $2000. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how Dymension DM40's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Floor-standing Speakers
Definitive Dymension DM40
High Frequency
Floor-standing Speakers
Definitive Dymension DM40
Among the speakers in our database with a max MSRP price of 2000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the Definitive Dymension DM40's 55Hz:
Impedance and Sensitivity
Definitive Dymension DM40's nominal impedance level is
4 ohms and has a sensitivity of
87 dB.
Sensitivity
Floor-standing Speakers
Definitive Dymension DM40
Nominal Impedance of the 4 Ohms means that the Definitive Technology Dymension DM40 is a difficult to drive speaker from nominal Impedance perspective, make sure that you choose an amplifier than can provide 4 Ohms for this speaker.
Many AVRs (audio/video receiver) in the market may have difficulty when the speakers dip below the 4 Ohms levels (this may cause clipping or even physical damage), so we recommend to not pair the Definitive Technology Dymension DM40 with an AVR but use an Integrated Amplifier instead.
Sensitivity
With a sensitivity level of only 87 dB, Definitive Technology Dymension DM40 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.
Check the amplifiers that are in a similar price range to the Definitive Dymension DM40:
Input Type
Dymension DM40 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
Definitive Dymension DM40 Back View
Definitive Dymension DM40 External Dimensions and Weight
Definitive Dymension DM40 has external dimensions of (Height x Width x Depth) 37.4 x 10.3 x 10.0 in (950 x 261 x 255 mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of Definitive Dymension DM40 is approximately 665.6cm2 / 103.2inch2.
WeightThe Definitive Dymension DM40 weighs 17.30kg / 38.1lbs per piece. Here is a comparison of how Dymension DM40's weight compares with the average, max and min weights in its class.
Weight
All Floor-standing Speakers
Definitive Dymension DM40
Weight
Floor-standing Speakers under $2000
Definitive Dymension DM40
Definitive Dymension DM40 - Top View
How does the Definitive Dymension DM40 compare to the Definitive Technology Dymension DM60?
One of the natural alternative to the Definitive Dymension DM40 is the Dymension DM60 which is located one step higher in Definitive Technology's Passive Floor-standing selection.
Check the Detailed Comparison of Definitive Dymension DM40 vs Dymension DM60 for more details.
Cabinet type and Materials
Definitive Dymension DM40 has a
Bass Reflex type cabinet. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Speaker Feet
Definitive Dymension DM40 comes with
4 Adjustable hard floor glides, 4 Adjustable carpet spikes which you can use to secure your loudspeaker on the surface that you are putting on. It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.
Available colors
Definitive Dymension DM40 is available in Black.
Does the Definitive Dymension DM40 come with a Grille?
Dymension DM40 comes with fixed grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
What's in the Box of Definitive Dymension DM40?
Here are the items that are included inside the box of Dymension DM40:
4 Adjustable hard floor glides 4 Adjustable carpet spikes
Recommended Accessories
Here is a list of accessories that we think you may need for the Definitive Technology Dymension DM40.
Official Product Page
Official manufacturer's product page for the Definitive Technology Dymension DM40 speaker can be found below:
Official Product Page for Definitive Dymension DM40
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.