In this review, we will be comparing EVO4.2 and Diamond 225, two Passive Bookshelf speakers by Wharfedale Let's have a brief look at the main features
of Wharfedale EVO4.2 and Wharfedale 225 first before getting into our more
detailed comparison.
What size room are the Wharfedale EVO4.2 and Wharfedale 225 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 EVO4.2 and Wharfedale 225 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 EVO4.2 is a 3-way design whereas the Diamond 225 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 |
Wharfedale EVO4.2 |
Wharfedale 225 |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1.18x2.36-inch
|
1-inch
|
|
Midrange
|
1 x 2-inch |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 6.5-inch
|
EVO4.2 features a 1.18x2.36" AMT (Ribbon) Tweeter , a 2" Midrange and 1 x 6.5" Kevlar Woofer . On the other hand, the Diamond 225 features a 1" Dome Tweeter and 1 x 6.5" Woven Kevlar Woofer with a Crossover frequency at 2300Hz.
Frequency Response
EVO4.2 has a frequency range of 54-22k Hz whereas Diamond 225 has a frequency range of 45-20k Hz. With a minimum frequency of 45Hz, the Diamond 225 can go significantly deeper on the low side and provide stronger bass compared to the EVO4.2's min frequency of 54Hz.
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
EVO4.2 and Diamond 225 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. EVO4.2 sensitivity is rated at 88 dB and the Diamond 225's is at 87 dB. This 1 dB difference makes the Wharfedale EVO4.2 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.
EVO4.2 and Diamond 225 has the same power range of 25-120 watts.
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 EVO4.2 and Diamond 225 features dual binding post speaker terminals for bi-amping or bi-wiring.
Wharfedale 225's Post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both EVO4.2 and Diamond 225 have bottom firing ports.
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 EVO4.2's and Wharfedale 225's external dimensions. Wharfedale EVO4.2 has external dimensions of 455.0 x 250.0 x 350.0mm ( 17.9 x 9.8 x 13.7inch) whereas Wharfedale 225 has external dimensions of 355.0 x 196.0 x 290.0mm ( 13.9 x 7.7 x 11.4inch) .
Wharfedale EVO4.2 is clearly the larger of the two speakers. Its body is 54mm wider, 100mm taller and 60mm deeper than Wharfedale 225.
Below you can see the front view size comparison of Wharfedale EVO4.2 and Wharfedale 225 in scale.
Comparison image of Wharfedale EVO4.2 and Wharfedale 225 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 EVO4.2 is approximately 875.0cm2 / 135.6inch2 and base area of the Wharfedale 225 is approximately 568.4cm2 / 88.1inch2. The EVO4.2 requires 54% more surface area than the Diamond 225 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 Wharfedale EVO4.2 weighs 13.40kg / 29.5lbs and the Wharfedale 225 weighs 6.55kg / 14.4lbs. This makes the EVO4.2 105% heavier than the Diamond 225.
Here is a comparison of how EVO4.2 and Diamond 225'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 EVO4.2?
Here are the items that are included inside the box of EVO4.2:
2 Bookshelf loudspeakers 2 Grilles 4 Jumper-bars (pre-installed) 8 Self-adhesive rubber feet Pair of white cloth gloves User Manual
What's in the Box of Wharfedale 225?
Here are the items that come with the Diamond 225:
2 Bookshelf loudspeakers 2 Grilles (pre-installed) 8 Self-adhesive rubber feet User's Manual Installation Guide
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Sensitivity |
88 dB
vs
87 dB
|
Play louder with same amount of amplification power |
 High Frequency Response |
22k Hz
vs
20k Hz
|
Generates higher frequency |
 Minimum Impedance |
4.2 ohms
vs
4 ohms
|
Very low impedance levels puts more pressure on amplifier |
 Low Frequency Response |
45 Hz
vs
54 Hz
|
Generates deeper bass |
 Height |
355mm
vs
455mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
568cm2 (196x290mm)
vs
875cm2 (250x350mm)
|
Takes less floor space |
 Price per pair* |
349USD
vs
1199USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Wharfedale EVO4.2 |
Wharfedale Diamond 225 |
| Brand |
Wharfedale |
Wharfedale |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-120 watts |
25-120 watts |
| Sensitivity |
88 dB |
87 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
4 ohms |
4.2 ohms |
| Frequency Response |
54-22k Hz |
45-20k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Woven Kevlar |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1.18x2.36" |
1" |
| Tweeter Type |
AMT (Ribbon) |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
2" |
No |
| Crossover Frequency |
n/a |
2300Hz |
| Firing Direction |
bottom |
bottom |
Physical Specs |
|
|
| Height |
455.0mm (17.9") |
355.0mm (14") |
| Width |
250.0mm (9.8") |
196.0mm (7.7") |
| Depth |
350.0mm (13.8") |
290.0mm (11.4") |
| Weight |
13.40kg (29.5lbs) |
6.55kg (14.4lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-veneer |
MDF/Wood veneer |
| Available Colors |
Walnut,Black,White |
Black, White, Walnut |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
18-22" |
24" |
| 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 |