In this review, we will be comparing M105 and Crystal 4.2, two Passive Bookshelf speakers from Revel and Wharfedale. Let's have a brief look at the main features
of Revel M105 and Wharfedale Crystal 4.2 first before getting into our more
detailed comparison.
What size room are the Revel M105 and Wharfedale Crystal 4.2 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 Revel M105 and Wharfedale Crystal 4.2 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 M105 and Crystal 4.2 are 2-way speakers.
Driver |
Revel M105 |
Wharfedale Crystal 4.2 |
Driver Setup
|
2-way
|
2-way
|
Tweeter
|
1-inch
|
1-inch
|
Midrange
|
- |
- |
Woofer
|
1 x 5.25-inch
|
1 x 5-inch
|
M105 features a 1" aluminum Hard-Dome with Acoustic Lens Waveguide Tweeter and 1 x 5.25" Aluminum Woofer with a Crossover frequency at 2300Hz. On the other hand, the Crystal 4.2 features a 1" Soft-dome Tweeter and 1 x 5" Woven Kevlar Woofer .
Frequency Response
M105 has a frequency range of 60Hz- 20kHz whereas Crystal 4.2 has a frequency range of 60-20k 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
M105 and Crystal 4.2 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. M105 sensitivity is rated at 86 dB and the Crystal 4.2's is at 88 dB. This 2 dB difference makes the Wharfedale Crystal 4.2 a more sensitive speaker compared to Revel M105, 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.
M105 can handle a max power of 120 watts RMS from the amp the whereas Crystal 4.2 has a max power handling value of 100 watts RMS, 20 watts less than the M105.
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
M105 features 5-way post type posts and Crystal 4.2 has a 5-way post type posts. None of these speakers feature bi-amping/bi-wiring.
Cabinet Type and Port Position
Both M105 and Crystal 4.2 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 Revel M105's and Wharfedale Crystal 4.2's external dimensions. Revel M105 has external dimensions of 359.0 x 202.0 x 251.0mm ( 14-1/8 x 7-15/16 x 9-7/8inch) whereas Wharfedale Crystal 4.2 has external dimensions of 266.0 x 181.0 x 220.0mm ( 10-7/16 x 7-1/8 x 8-5/8inch) .
Revel M105 is clearly the larger of the two speakers. Its body is 21mm wider, 93mm taller and 31mm deeper than Wharfedale Crystal 4.2.
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 Revel M105 is approximately 507.0cm2 / 78.6inch2 and base area of the Wharfedale Crystal 4.2 is approximately 398.2cm2 / 61.7inch2. The M105 requires 27% more surface area than the Crystal 4.2 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 Revel M105 weighs 7.14kg / 15.7lbs and the Wharfedale Crystal 4.2 weighs 4.20kg / 9.2lbs. This makes the M105 70% heavier than the Crystal 4.2.
Here is a comparison of how M105 and Crystal 4.2's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Revel M105?
Here are the items that are included inside the box of M105:
Bookshelf loudspeakerGrilleFoam port plugOwners Manual
What's in the Box of Wharfedale Crystal 4.2?
Here are the items that come with the Crystal 4.2:
2 Bookshelf loudspeakers2 Grilles (pre-installed)User-feets ManualInstallation Guide
Max Input Power |
120 watts
vs
100 watts
|
Handle more power from your amplifier |
Woofer Size |
5.25 inches
vs
5 inches
|
Larger woofer |
Sensitivity |
88 dB
vs
86 dB
|
Play louder with same amount of amplification power |
Height |
266mm
vs
359mm
|
Easier to fit in smaller spaces |
Base Surface Area |
398cm2 (181x220mm)
vs
507cm2 (202x251mm)
|
Takes less floor space |
General |
Revel Performa3 M105 |
Wharfedale Crystal 4.2 |
Brand |
Revel |
Wharfedale |
Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
Power Range |
50-120 watts |
20-100 watts |
Sensitivity |
86 dB |
88 dB |
Impedance |
8 ohms |
8 ohms |
Frequency Response |
60Hz- 20kHz |
60-20k Hz |
Drivers |
|
|
Woofer Quantity |
1 |
1 |
Woofer Size |
5.25" |
5" |
Woofer Composition |
Aluminum |
Woven Kevlar |
Woofer Surround Material |
Rubber |
Rubber |
Tweeter Size |
1" |
1" |
Tweeter Type |
Hard-Dome with Acoustic Lens Waveguide |
Soft-dome |
Aimable Tweeter |
No |
No |
Midrange Driver |
No |
No |
Crossover Frequency |
2300Hz |
n/a |
Firing Direction |
rear |
rear |
Physical Specs |
|
|
Height |
359.0mm (14.1") |
266.0mm (10.5") |
Width |
202.0mm (8") |
181.0mm (7.1") |
Depth |
251.0mm (9.9") |
220.0mm (8.7") |
Weight |
7.14kg (15.7lbs) |
4.20kg (9.2lbs) |
Enclosure |
Bass Reflex |
Bass reflex |
Finish |
Wood/Lacquer |
Wood-grain vinyl |
Available Colors |
Gloss Walnut,Piano Black,Piano White |
Walnut |
Mounting Bracket |
No |
No |
Recommended Stand Height |
24-25" |
24-28" |
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 |