In this review, we will be comparing EVO4.4 and BW 603, two Passive Floor-standing speakers from Wharfedale and Bowers Wilkins.
Let's have a brief look at the main features
of Wharfedale EVO4.4 and B&W 603 first before getting into our more
detailed comparison.
| Key Specs | Wharfedale EVO4.4 | B&W 603 |
|---|
| Brand | Wharfedale
United Kingdom · founded 1932 | Bowers Wilkins
United Kingdom · founded 1966 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1.18x2.36" AMT (Ribbon) | 1" |
|---|
| Midrange | 2" | 6" |
|---|
| Woofer | 2 x 6.5" Kevlar | 2 x 6.5" Paper |
|---|
| Frequency response | 44-22k Hz | 48-28k Hz |
|---|
| Sensitivity | 89 dB | 88.5 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | 30-200 watts | 30-200 watts |
|---|
| Weight | 25.60kg / 56.3lbs | 24.14kg / 53.1lbs |
|---|
| Dimensions (H x W x D) | 41.7" x 9.8" x 14.2"
1060.0 x 250.0 x 360.0mm | 38.7" x 7.4" x 13.3"
985.0 x 190.0 x 340.0mm |
|---|
What size room are the Wharfedale EVO4.4 and B&W 603 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:
| Listening Environment* |
Wharfedale EVO4.4 |
B&W 603 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Poor |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both EVO4.4 and BW 603 are 3-way speakers.
Wharfedale EVO4.4B&W 603
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Wharfedale EVO4.4 |
B&W 603 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1.18x2.36-inch
|
1-inch
|
|
Midrange
|
1 x 2-inch |
1 x 6-inch |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
EVO4.4 features a 1.18x2.36" AMT (Ribbon) Tweeter, a 2" Midrange and 2 x 6.5" Kevlar Woofer. On the other hand, the BW 603 features a 1" Tweeter, a 6" Midrange and 2 x 6.5" Paper Woofer.
Frequency Response
EVO4.4 has a frequency range of 44-22k Hz whereas BW 603 has a frequency range of 48-28k Hz. With a minimum frequency of 44Hz, the EVO4.4 can go slightly deeper then the BW 603's min frequency of 48Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
EVO4.4 and BW 603 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. EVO4.4 sensitivity is rated at 89 dB and the BW 603's is at 88.5 dB.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
EVO4.4 and BW 603 have the same power range of 30-200 watts.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
Which plays louder on your amplifier?
Starting with a popular amplifier - change it to the one you own, or any you are
considering, and watch both numbers move.
Input Type and Bi-Amping / Bi-Wiring
Both EVO4.4 and BW 603 features dual binding post speaker terminals for bi-amping or bi-wiring.
Wharfedale EVO4.4's Binding post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
EVO4.4 has a bottom firing port whereas BW 603 has a rear firing ports. Wharfedale EVO4.4's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to B&W 603 with its rear-firing port.
Physical Specs
The size of a speaker can sometimes be 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 EVO4.4's and B&W 603's external dimensions. Wharfedale EVO4.4 has external dimensions of 1060.0 x 250.0 x 360.0mm (41.7 x 9.8 x 14.2inch) whereas B&W 603 has external dimensions of 985.0 x 190.0 x 340.0mm (38.7 x 7.4 x 13.3inch).
Wharfedale EVO4.4 is clearly the larger of the two speakers. Its body is 60mm wider, 75mm taller and 20mm deeper than B&W 603.
Below you can see the front view size comparison of Wharfedale EVO4.4 and B&W 603 in scale.
Comparison image of Wharfedale EVO4.4 and B&W 603 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 EVO4.4 is approximately 900.0cm2 / 139.5inch2 and base area of the B&W 603 is approximately 646.0cm2 / 100.1inch2. The EVO4.4 requires 39% more surface area than the BW 603 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 EVO4.4 weighs 25.60kg / 56.3lbs and the B&W 603 weighs 24.14kg / 53.1lbs. This makes the EVO4.4 6% heavier than the BW 603.
Here is a comparison of how EVO4.4 and BW 603's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Wharfedale EVO4.4?
Here are the items that are included inside the box of EVO4.4:
- Floorstanding loudspeaker
- Grille
- 4 Outrigger feet (pre-installed)
- 4 Spikes (pre-installed)
- 4 Isolation pucks
- 2 Jumper-bars (pre-installed)
- Pair of white cloth gloves
- User Manual
What's in the Box of B&W 603?
Here are the items that come with the BW 603:
- Floorstanding loudspeaker
- Grille
- Plinith (base)
- 2 Jumper-straps (pre-installed)
- 4 Rubber feet
- 4 Spike feet
- 4 Hex-nuts
- 4 Screws
- 4 Washers
- 4 Lock-washers
- Two-piece foam port plug
- Hex-key
- Manual
- Bowers & Wilkins brochure
- Warranty Information
 Low Frequency Response |
44 Hz
vs
48 Hz
|
Generates deeper bass |
 High Frequency Response |
28k Hz
vs
22k Hz
|
Generates higher frequency |
 Height |
985mm
vs
1060mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
646cm2
vs
900cm2
|
Takes less floor space |
| General |
Wharfedale EVO4.4 |
Bowers & Wilkins 603 |
| Brand |
Wharfedale |
Bowers Wilkins |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
30-200 watts |
30-200 watts |
| Sensitivity |
89 dB |
88.5 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
4.3 ohms |
n/a |
| Frequency Response |
44-22k Hz |
48-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Paper |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1.18x2.36" |
1" |
| Tweeter Type |
AMT (Ribbon) |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
2" |
6" |
| Firing Direction |
bottom |
rear |
Physical Specs |
|
|
| Height |
1060.0mm (41.7") |
985.0mm (38.8") |
| Width |
250.0mm (9.8") |
190.0mm (7.5") |
| Depth |
360.0mm (14.2") |
340.0mm (13.4") |
| Weight |
25.60kg (56.3lbs) |
24.14kg (53.1lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-veneer |
MDF/Vinyl |
| Available Colors |
Walnut |
Black, White, Oak |
| 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 |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | A | Wharfedale EVO4.4 digs deeper - 44Hz against 48Hz. A subwoofer would even that out. |
| Amplifier needs | evenly matched | Similar sensitivity (89dB vs 89dB) - both want much the same power. |
| Headroom | evenly matched | Similar power handling (200W vs 200W). |
| Size | depends | B&W 603 is easier to place; Wharfedale EVO4.4 is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Wharfedale EVO4.4: bi-amping; B&W 603: bi-amping. Wharfedale EVO4.4 sits in a wider range (7 models), so a matched surround system is easier later. |
A Wharfedale EVO4.4 B B&W 603
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Wharfedale EVO4.4 has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. In a large or open-plan room, Wharfedale EVO4.4 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, B&W 603 is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.