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Definitive Technology Dymension DM30 Review
Definitive Technology Dymension DM30

Main Features

  • 1" Hard-Dome Tweeter
  • 4 x 5.25" BDSS with Linear Response Waveguide Midrange
  • 8" Polypropelene Woofer
  • 2 x 8-inch Passive Radiators
  • 180-watts (Class D Amp) Built-in Subwoofer
  • 41-23 kHz Frequency Response
  • 93 dB Sensitivity
  • Impedance: 4ohms
  • Power Range: 50-300watts
  • Weight:54.00 lbs / 24.50 kg
  • Dimensions(HxWxD): 7.5"x31.5"x15.9" / 190 x 800 x 403 mm
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Definitive Dymension DM30 Review

Definitive Technology Dymension DM30 is a 3-way Passive Passive Radiator Center Channel speaker by Definitive Technology. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1" Hard-Dome Tweeter, 4 x 5.25" Midrange and 1 x 8" Polypropelene Woofer. Dymension DM30 also employs 2 x 8-inch passive radiators. In addition, the speaker has a 180-watts (Class D Amp) built-in Sub-woofer. The speaker has a frequency range of 41-23 kHz and a sensitivity of 93 dB. Definitive Dymension DM30 has an MSRP of 1499$.

What size of room is the Definitive Dymension DM30 speaker good for?

The size of the room in which you are planning to use the Definitive Dymension DM30 is an important decision factor. Here we have evaluated its suitability to various sizes of environments considering its size and max power parameters:

Listening Environment* Suitability
Near-fieldPoor
Small RoomPoor
Mid-size RoomGood
Large RoomGood
Very Large RoomAverage

(* 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 DM30 Speaker Structure
Definitive Dymension DM30 Speaker Structure

What are the speakers in Definitive Technology's Dymension Series?

Dymension DM30 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
Model Frequency SensitivityImpedance Woofer
Definitive Dymension DM80
Compare
28-23k Hz 90 dB4Ω 1 x 12"
Definitive Dymension DM20
Compare
91-23k Hz 89 dB4Ω 4 x 4.5"
Definitive Dymension DM60
Compare
34-23k Hz 88 dB4Ω 1 x 8"
Definitive Dymension DM40
Compare
55-23k Hz 87 dB4Ω 4 x 4.5"
Definitive Dymension DM30
41-23k Hz 93 dB4Ω 1 x 8"
Definitive Dymension DM70
Compare
30-23k Hz 90 dB4Ω 1 x 10"
Definitive Dymension DM10
Compare
81-23k Hz 90 dB4Ω 2 x 5.25"
Definitive Technology Dymension Series Speakers
Definitive Technology Dymension Series Speakers


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

What is the Frequency Response of the Definitive Dymension DM30 speaker?

Definitive Dymension DM30 has a Frequency response range of 41-23 kHz at ±3dB (36 Hz–30 kHz (-10dB)) and Power Range of 50-300 watts. Here we have a comparison of how Dymension DM30's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.

Low Frequency
Center Channel Speakers
Definitive Dymension DM30
Min
Average
Max
High Frequency
Center Channel Speakers
Definitive Dymension DM30
Min
Average
Max


What are the Impedance and Sensitivity of the Definitive Dymension DM30? Is it an easy-to-drive speaker?

Definitive Dymension DM30's nominal impedance level is 4 ohms and has a sensitivity of 93 dB.

Sensitivity
Center Channel Speakers
Definitive Dymension DM30
Min
Average
Max

Nominal Impedance of 4 Ohms means that the Definitive Technology Dymension DM30 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 DM30 with an AVR but use an Integrated Amplifier instead.

Sensitivity

93dB of Definitive Technology Dymension DM30 is considered a high sensitivity compared to average stereo speaker which makes Dymension DM30 an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the Definitive Dymension DM30 will be a good choice.

Check the amplifiers that are in a similar price range to the Definitive Dymension DM30:

  • Integrated Amps under 1000 USD
  • Integrated Amps under 1500 USD
  • Integrated Amps under 2000 USD
  • All Integrated Amplifiers

Input Type

Dymension DM30 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
Definitive Dymension DM30 Back View
Definitive Dymension DM30 Back View

Definitive Dymension DM30 External Dimensions and Weight

Definitive Dymension DM30 has external dimensions of (Height x Width x Depth) 7.5 x 31.5 x 15.9 in (190 x 800 x 403 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 DM30 is approximately 3224.0cm2 / 499.7inch2.

Weight

The Definitive Dymension DM30 weighs 24.50kg / 53.9lbs per piece. Here is a comparison of how Dymension DM30's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
Definitive Dymension DM30
Min
Average
Max
Weight
Center Channel Speakers under $1500
Definitive Dymension DM30
Min
Average
Max

Cabinet type and Materials

Definitive Dymension DM30 has a Passive Radiator type cabinet.

Available colors

Definitive Dymension DM30 is available in Black.

Does the Definitive Dymension DM30 come with a Grille?

Dymension DM30 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.

Official Product Page

Official manufacturer's product page for the Definitive Technology Dymension DM30 speaker can be found below:
Official Product Page for Definitive Dymension DM30

Warranty

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

Definitive Dymension DM30  Lifestyle
Definitive Dymension DM30 Lifestyle

Definitive Technology Dymension DM30 Alternatives in Passive Center Channel Speakers
Model Type Sensitivity Impedance Frequency
Klipsch RP-504C II
Compare
2-way 96 dB 8 ohms 50-25k Hz
Emotiva Airmotiv C3+
Compare
3-way 92 dB 4 ohms 40 Hz – 28 kHz
BW HTM71 S2
Compare
3-way 89 dB 8 ohms 50-28k Hz
KEF R2c
Compare
3-way 87 dB 8 ohms 74-28k Hz
SVS Ultra Center
Compare
3-way 87 dB 8 ohms 45-32k Hz
BW HTM6 S2
Compare
2-way 87 dB 8 ohms 72-28k Hz
Monitor Audio Silver C250 7G
Compare
3-way 88.5 dB 8 ohms 65-35k Hz
BW HTM72 S2
Compare
2-way 87 dB 8 ohms 70-28k Hz
Dali Opticon VOKAL II
Compare
3-way 88 dB 4 ohms 47-30k Hz
Klipsch RC-64 III
Compare
2-way 99 dB 8 ohms 57-24k Hz
Frequently Asked Questions about Definitive Technology Dymension DM30
What is the External Dimensions of Definitive Technology Dymension DM30
What is the Speaker Sensitivity of Definitive Technology Dymension DM30
is the Definitive Technology Dymension DM30 an easy to drive speaker?



Definitive Dymension DM30 Detailed Specifications

General
BrandDefinitive Technology
Full Model NameDefinitive Technology Dymension DM30
Speaker Type3-way Center Channel
Power Range50-300 watts
Sensitivity93 dB
Impedance4 ohms
Frequency Response41-23 kHz
DRIVERS
Woofer Size8-inch
Woofer CompositionPolypropelene
Woofer SurroundRubber
Tweeter Size1-inch
Tweeter TypeHard-Dome
Midrange Size5.25-inch

CONNECTIONS
Connector TypeBinding post
Biamp InputsNo
PHYSICAL SPECS
Height190.0mm ( 7.5-inch)
Width800.0mm ( 31.5-inch)
Depth403.0mm ( 15.9-inch)
Height190.0mm ( 7.5-inch)
Weight24.50kg ( 54.00 lbs)
EnclosurePassive Radiator
Available ColorsBlack
Mounting BracketNo
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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