In this review, we will be comparing Diamond 225 and RP-600M, two Passive Bookshelf speakers from Wharfedale and Klipsch. Let's have a brief look at the main features
of Wharfedale 225 and Klipsch RP-600M first before getting into our more
detailed comparison.
What size room are the Wharfedale 225 and Klipsch RP-600M 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 Wharfedale 225 and Klipsch RP-600M 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 Diamond 225 and RP-600M are 2-way speakers.
| Driver |
Wharfedale 225 |
Klipsch RP-600M |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 6.5-inch
|
Diamond 225 features a 1" Dome Tweeter and 1 x 6.5" Woven Kevlar Woofer with a Crossover frequency at 2300Hz. On the other hand, the RP-600M features a 1" Tractrix Horn Tweeter and 1 x 6.5" Cerametallic Woofer with a Crossover frequency at 1500Hz.
Frequency Response
Diamond 225 has a frequency range of 45-20k Hz whereas RP-600M has a frequency range of 45-25k Hz.
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 Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
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
Diamond 225 and RP-600M have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Diamond 225 sensitivity is rated at 87 dB and the RP-600M's is at 96 dB. This 9 dB difference makes the Klipsch RP-600M a more sensitive speaker compared to Wharfedale 225, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf 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.
Diamond 225 can handle a max power of 120 watts RMS from the amp the whereas RP-600M has a max power handling value of 100 watts RMS, 20 watts less than the Diamond 225.
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
Both Diamond 225 and RP-600M features dual binding post speaker terminals for bi-amping or bi-wiring.
Wharfedale 225's Post terminals allows Bi-amping or bi-wiring
Klipsch RP-600M's Dual binding posts/bi-wire/bi-amp terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Diamond 225 has a bottom firing port whereas RP-600M has a rear firing ports. Wharfedale 225's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to Klipsch RP-600M with its rear-firing port.
Klipsch RP-600M Tractrix horn-shaped Port
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 Wharfedale 225's and Klipsch RP-600M's external dimensions. Wharfedale 225 has external dimensions of 355.0 x 196.0 x 290.0mm ( 13.9 x 7.7 x 11.4inch) whereas Klipsch RP-600M has external dimensions of 399.0 x 202.0 x 301.0mm ( 15.7 x 7.9 x 11.8inch) .
Klipsch RP-600M is clearly the larger of the two speakers. Its body is 6mm wider, 44mm taller and 11mm deeper than Wharfedale 225.
Below you can see the front view size comparison of Wharfedale 225 and Klipsch RP-600M in scale.
Comparison image of Wharfedale 225 and Klipsch RP-600M Size and External Dimensions
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 Wharfedale 225 is approximately 568.4cm2 / 88.1inch2 and base area of the Klipsch RP-600M is approximately 608.0cm2 / 94.2inch2. The Diamond 225 requires 7% less surface area than the RP-600M which gives it a small advantage on placement in tight spaces.
Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Wharfedale 225 and Klipsch RP-600M on a Media Console
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 Wharfedale 225 weighs 6.55kg / 14.4lbs and the Klipsch RP-600M weighs 7.30kg / 16.1lbs. This makes the RP-600M 11% heavier than the Diamond 225.
Here is a comparison of how Diamond 225 and RP-600M's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Wharfedale 225?
Here are the items that are included inside the box of Diamond 225:
2 Bookshelf loudspeakers 2 Grilles (pre-installed) 8 Self-adhesive rubber feet User's Manual Installation Guide
What's in the Box of Klipsch RP-600M?
Here are the items that come with the RP-600M:
2 Bookshelf loudspeakers2 Grilles (installed)8 Self-adhesive rubber feet4 Terminal jumpers (installed)User ManualImportant Safety InstructionsWarranty Information
 Max Input Power |
120 watts
vs
100 watts
|
Handle more power from your amplifier |
 Height |
355mm
vs
399mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
568cm2 (196x290mm)
vs
608cm2 (202x301mm)
|
Takes less floor space |
 Price per pair* |
349USD
vs
369USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
96 dB
vs
87 dB
|
Play louder with same amount of amplification power |
 High Frequency Response |
25k Hz
vs
20k Hz
|
Generates higher frequency |
| General |
Wharfedale Diamond 225 |
Klipsch Reference Premiere RP-600M |
| Brand |
Wharfedale |
Klipsch |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-120 watts |
up to 100 watts |
| Sensitivity |
87 dB |
96 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
4.2 ohms |
n/a |
| Frequency Response |
45-20k Hz |
45-25k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Woven Kevlar |
Cerametallic |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Dome |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2300Hz |
1500Hz |
| Firing Direction |
bottom |
rear |
Physical Specs |
|
|
| Height |
355.0mm (14") |
399.0mm (15.7") |
| Width |
196.0mm (7.7") |
202.0mm (8") |
| Depth |
290.0mm (11.4") |
301.0mm (11.9") |
| Weight |
6.55kg (14.4lbs) |
7.30kg (16.1lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood veneer |
MDF/Wood-grain vinyl |
| Available Colors |
Black, White, Walnut |
Ebony, Walnut, Piano Black |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
24" |
22-26" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |