In this review, we will be comparing Dymension DM30 and RP-504C II, two Passive Center Channel speakers from Definitive Technology and Klipsch. Let's have a brief look at the main features
of Definitive Dymension DM30 and Klipsch RP-504C II first before getting into our more
detailed comparison.
What size room are the Definitive Dymension DM30 and Klipsch RP-504C II speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
In the following sections, we will get into more detail in order to better understand how the Definitive Dymension DM30 and Klipsch RP-504C II 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
One of the fundamental differences between these two speakers is that Dymension DM30 is a 3-way design whereas the RP-504C II is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
Definitive Dymension DM30 |
Klipsch RP-504C II |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
4 x 5.25-inch |
- |
|
Woofer
|
1 x 8-inch
|
4 x 5.25-inch
|
Dymension DM30 features a 1" aluminum oxide Hard-Dome Tweeter , a 5.25" Midrange and 1 x 8" Polypropelene Woofer . On the other hand, the RP-504C II features a 1" titanium Tractrix Horn Tweeter and 4 x 5.25" Cerametallic cone Woofer with a Crossover frequency at 1950 Hz.
Frequency Response
Dymension DM30 has a frequency range of 41-23 kHz whereas RP-504C II has a frequency range of 50-25k Hz. With a minimum frequency of 41Hz, the Dymension DM30 can go significantly deeper on the low side and provide stronger bass compared to the RP-504C II's min frequency of 50Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel Speakers
Definitive Dymension DM30
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 DM30 is a 4 ohms speaker compared to the RP-504C II 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 DM30 can provide this impedance level.
These two speakers also have different sensitivity levels. Dymension DM30 sensitivity is rated at 93 dB and the RP-504C II's is rated at 96 dB. This 3 dB difference makes the Klipsch RP-504C II a more sensitive speaker compared to Definitive Dymension DM30, hence will play louder with the same amount of watts.
Sensitivity
Center Channel 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 DM30 can handle a max power of 300 watts RMS from the amp the whereas RP-504C II has a max power handling value of 150 watts RMS, 150 watts less than the Dymension DM30.
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 DM30 features Binding post type posts and RP-504C II has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
Definitive Dymension DM30's Binding post terminals
Klipsch RP-504C II's Binding 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 DM30's and Klipsch RP-504C II's external dimensions. Definitive Dymension DM30 has external dimensions of 190 x 800 x 403 mm ( 7.5 x 31.5 x 15.9 in) whereas Klipsch RP-504C II has external dimensions of 177.0 x 818.0 x 385.0mm ( 6-15/16 x 32-3/16 x 15-1/8inch) .
Klipsch RP-504C II is 13mm shorter and 18mm less deeper than Definitive Dymension DM30 but it is also 18mm 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 DM30 is approximately 3224.0cm2 / 499.7inch2 and base area of the Klipsch RP-504C II is approximately 3149.3cm2 / 488.1inch2. The Dymension DM30 requires 2% more surface area than the RP-504C II which gives it a small disadvantage 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 DM30 weighs 24.50kg / 53.9lbs and the Klipsch RP-504C II weighs 16.50kg / 36.3lbs. This makes the Dymension DM30 48% heavier than the RP-504C II.
Here is a comparison of how Dymension DM30 and RP-504C II's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
Definitive Dymension DM30
What's in the Box of Klipsch RP-504C II?
Here are the items that come with the RP-504C II:
Center channel loudspeakerGrilleUser ManualImportant Safety InstructionsWarranty Information
 Max Input Power |
300 watts
vs
150 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Woofer Size |
8 inches
vs
5.25 inches
|
Larger woofer |
| Low Frequency Response |
41 Hz
vs
50 Hz
|
Generates deeper bass |
 Passive Radiator |
2 x 8-inch
vs
None
|
Increases the bass performance |
 Sensitivity |
96 dB
vs
93 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
| Number of Woofers |
4
vs
1
|
More woofers |
 High Frequency Response |
25k Hz
vs
23k Hz
|
Generates higher frequency |
 Height |
177mm
vs
190mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
3149cm2 (818x385mm)
vs
3224cm2 (800x403mm)
|
Takes less floor space |
 Price per pair* |
799USD
vs
1499USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Definitive Technology Dymension DM30 |
Klipsch Reference Premiere RP-504C II |
| Brand |
Definitive Technology |
Klipsch |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
50-300 watts |
up to 150 watts |
| Sensitivity |
93 dB |
96 dB |
| Impedance |
4 ohms |
8 ohms |
| Frequency Response |
41-23 kHz |
50-25k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
4 |
| Woofer Size |
8" |
5.25" |
| Woofer Composition |
Polypropelene |
Cerametallic cone |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5.25" |
No |
| Crossover Frequency |
n/a |
1950 Hz |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
190.0mm (7.5") |
177.0mm (7") |
| Width |
800.0mm (31.5") |
818.0mm (32.2") |
| Depth |
403.0mm (15.9") |
385.0mm (15.2") |
| Weight |
24.50kg (53.9lbs) |
16.50kg (36.3lbs) |
| Enclosure |
Passive Radiator |
Bass Reflex |
| Finish |
n/a |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Walnut, Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |