In this review, we will be comparing Dymension DM40 and Concord, two Passive Floor-standing speakers from Definitive Technology and KLH. Let's have a brief look at the main features
of Definitive Dymension DM40 and KLH Concord first before getting into our more
detailed comparison.
In the following sections, we will get into more detail in order to better understand how the Definitive Dymension DM40 and KLH Concord compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both Dymension DM40 and Concord are 2-way speakers.
| Driver |
Definitive Dymension DM40 |
KLH Concord |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
4 x 4.5-inch
|
2 x 6.5-inch
|
Dymension DM40 features a 1" aluminum oxide 2 x Hard-Dome Tweeter and 4 x 4.5" Polypropelene Woofer . On the other hand, the Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer .
Frequency Response
Dymension DM40 has a frequency range of 55-23 kHz whereas Concord has a frequency range of 28-23k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the Dymension DM40's min frequency of 55Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
Definitive Dymension DM40
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Dymension DM40 is a 4 ohms speaker compared to the Concord which has a nominal impedance of 8 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the Dymension DM40 can provide this impedance level.
These two speakers also have different sensitivity levels. Dymension DM40 sensitivity is rated at 87 dB and the Concord's is rated at 94 dB. This 7 dB difference makes the KLH Concord a more sensitive speaker compared to Definitive Dymension DM40, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
Dymension DM40 can handle a max power of 250 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS, 250 watts less than the Dymension DM40.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Dymension DM40 features 5-Way post type posts and Concord has a 5-Way post type posts. None of these speakers feature bi-amping/bi-wiring.
Definitive Dymension DM40's Binding post terminals
KLH Concord's 5-Way post terminals
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Definitive Dymension DM40's and KLH Concord's external dimensions. Definitive Dymension DM40 has external dimensions of 950 x 261 x 255 mm ( 37.4 x 10.3 x 10.0 in) whereas KLH Concord has external dimensions of 1026.0 x 212.0 x 380.0mm ( 40-3/8 x 8-5/16 x 14-15/16inch) .
Definitive Dymension DM40 is 76mm shorter and 125mm less deeper than KLH Concord but it is also 49mm wider.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Definitive Dymension DM40 is approximately 665.6cm2 / 103.2inch2 and base area of the KLH Concord is approximately 805.6cm2 / 124.9inch2. The Dymension DM40 requires 17% less surface area than the Concord which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Definitive Dymension DM40 weighs 17.30kg / 38.1lbs and the KLH Concord weighs 20.45kg / 45lbs. This makes the Concord 18% heavier than the Dymension DM40.
Here is a comparison of how Dymension DM40 and Concord's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
Definitive Dymension DM40
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
What's in the Box of KLH Concord?
Here are the items that come with the Concord:
Floorstanding loudspeakerGrille4 Spike feet (w/ locking nut attached)4 Protective discs4 Rubber feetPort plugManualATTENTION! note
 Number of Woofers |
4
vs
2
|
More woofers |
 Height |
950mm
vs
1026mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
665cm2 (261x255mm)
vs
805cm2 (212x380mm)
|
Takes less floor space |
 Sensitivity |
94 dB
vs
87 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
| Woofer Size |
6.5 inches
vs
4.5 inches
|
Larger woofer |
| Low Frequency Response |
28 Hz
vs
55 Hz
|
Generates deeper bass |
 Price per pair* |
1000USD
vs
1998USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Definitive Technology Dymension DM40 |
KLH Concord |
| Brand |
Definitive Technology |
KLH |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
50-250 watts |
up to 225 watts |
| Sensitivity |
87 dB |
94 dB |
| Impedance |
4 ohms |
8 ohms |
| Frequency Response |
55-23 kHz |
28-23k Hz |
Drivers |
|
|
| Woofer Quantity |
4 |
2 |
| Woofer Size |
4.5" |
6.5" |
| Woofer Composition |
Polypropelene |
Kevlar |
| Woofer Surround Material |
Rubber |
Butyl Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
2 x Hard-Dome |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
950.0mm (37.4") |
1026.0mm (40.4") |
| Width |
261.0mm (10.3") |
212.0mm (8.3") |
| Depth |
255.0mm (10") |
380.0mm (15") |
| Weight |
17.30kg (38.1lbs) |
20.45kg (45lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
n/a |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
10 Years |
| Labor Warranty |
5 Years |
10 Years |