In this review, we will be comparing BW 607 and Crystal 4.2, two Passive Bookshelf speakers from Bowers Wilkins and Wharfedale. Let's have a brief look at the main features
of B&W 607 and Wharfedale Crystal 4.2 first before getting into our more
detailed comparison.
What size room are the B&W 607 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 B&W 607 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 BW 607 and Crystal 4.2 are 2-way speakers.
Driver |
B&W 607 |
Wharfedale Crystal 4.2 |
Driver Setup
|
2-way
|
2-way
|
Tweeter
|
1-inch
|
1-inch
|
Midrange
|
- |
- |
Woofer
|
1 x 5-inch
|
1 x 5-inch
|
BW 607 features a 1" Decoupled Carbon Hard-Dome Tweeter and 1 x 5" Continuum Woofer . On the other hand, the Crystal 4.2 features a 1" Soft-dome Tweeter and 1 x 5" Woven Kevlar Woofer .
Frequency Response
BW 607 has a frequency range of 52-28k Hz whereas Crystal 4.2 has a frequency range of 60-20k Hz. With a minimum frequency of 52Hz, the BW 607 can go significantly deeper on the low side and provide stronger bass compared to the Crystal 4.2's min frequency of 60Hz.
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
BW 607 and Crystal 4.2 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. BW 607 sensitivity is rated at 84 dB and the Crystal 4.2's is at 88 dB. This 4 dB difference makes the Wharfedale Crystal 4.2 a more sensitive speaker compared to B&W 607, 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.
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
BW 607 features Post posts which make bi-amping or bi-wiring possible. Crystal 4.2 has a 5-way post which doesn't feature bi-amping/bi-wiring.
Cabinet Type and Port Position
Both BW 607 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 B&W 607's and Wharfedale Crystal 4.2's external dimensions. B&W 607 has external dimensions of 300.0 x 165.0 x 207.0mm ( 11.8 x 6.4 x 8.1inch) 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) .
B&W 607 is 16mm narrower and 13mm less deeper than Wharfedale Crystal 4.2 but it is also 34mm taller.
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 B&W 607 is approximately 341.6cm2 / 52.9inch2 and base area of the Wharfedale Crystal 4.2 is approximately 398.2cm2 / 61.7inch2. The BW 607 requires 14% less surface area than the Crystal 4.2 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 B&W 607 weighs 4.70kg / 10.3lbs and the Wharfedale Crystal 4.2 weighs 4.20kg / 9.2lbs. This makes the BW 607 12% heavier than the Crystal 4.2.
Here is a comparison of how BW 607 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 B&W 607?
Here are the items that are included inside the box of BW 607:
2 Bookshelf loudspeakers2 Grilles2 Two-piece foam port plugs8 Self-adhesive rubber feet4 Jumper-straps Manual Bowers & Wilkins brochureWarranty Information
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
Low Frequency Response |
52 Hz
vs
60 Hz
|
Generates deeper bass |
High Frequency Response |
28k Hz
vs
20k Hz
|
Generates higher frequency |
Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
Base Surface Area |
341cm2 (165x207mm)
vs
398cm2 (181x220mm)
|
Takes less floor space |
Sensitivity |
88 dB
vs
84 dB
|
Play louder with same amount of amplification power |
Height |
266mm
vs
300mm
|
Easier to fit in smaller spaces |
General |
Bowers & Wilkins 607 |
Wharfedale Crystal 4.2 |
Brand |
Bowers Wilkins |
Wharfedale |
Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
Power Range |
30-100 watts |
20-100 watts |
Sensitivity |
84 dB |
88 dB |
Impedance |
8 ohms |
8 ohms |
Impedance |
3.0 ohms |
n/a |
Frequency Response |
52-28k Hz |
60-20k Hz |
Drivers |
|
|
Woofer Quantity |
1 |
1 |
Woofer Size |
5" |
5" |
Woofer Composition |
Continuum |
Woven Kevlar |
Woofer Surround Material |
Rubber |
Rubber |
Tweeter Size |
1" |
1" |
Tweeter Type |
Hard-Dome |
Soft-dome |
Aimable Tweeter |
No |
No |
Midrange Driver |
No |
No |
Firing Direction |
rear |
rear |
Physical Specs |
|
|
Height |
300.0mm (11.8") |
266.0mm (10.5") |
Width |
165.0mm (6.5") |
181.0mm (7.1") |
Depth |
207.0mm (8.1") |
220.0mm (8.7") |
Weight |
4.70kg (10.3lbs) |
4.20kg (9.2lbs) |
Enclosure |
Bass Reflex |
Bass reflex |
Finish |
MDF/Vinyl |
Wood-grain vinyl |
Available Colors |
Black, White, Oak |
Walnut |
Mounting Bracket |
No |
No |
Recommended Stand Height |
24-26" |
24-28" |
Grille |
Yes |
Yes |
Moisture Resistancy |
No |
No |
Connections |
|
|
Biamp Inputs |
Yes |
No |
Other |
|
|
Parts Warranty |
5 Years |
5 Years |
Labor Warranty |
5 Years |
5 Years |