In this review, we will be comparing 703 S2 and BW 603, two Passive Floor-standing speakers by Bowers Wilkins
Let's have a brief look at the main features
of B&W 703 S2 and B&W 603 first before getting into our more
detailed comparison.
B&W 703 S2 Key Specs
- 3-way Design
- 1" Tweeter
- 6" Midrange
- 2 x 6.5" Aerofoil Woofer
- 46-28k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-200watts
- Weight:25.00kg
- Dimensions (H x W x D): 1025.0" x 12-11/16" x 12.6"( 1025.0 x 200.0 x 321.0mm )
B&W 603 Key Specs
- 3-way Design
- 1" Tweeter
- 6" Midrange
- 2 x 6.5" Paper Woofer
- 6" Midrange
- 48-28k Hz Frequency Response
- 88.5 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-200watts
- Weight:24.14kg
- Dimensions (H x W x D): 985.0" x 7.4" x 13.3"( 985.0 x 190.0 x 340.0mm )
What size room are the B&W 703 S2 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* |
B&W 703 S2 |
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.)
In the following sections, we will get into more detail in order to better understand how the B&W 703 S2 and B&W 603 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 703 S2 and BW 603 are 3-way speakers.
| Driver |
B&W 703 S2 |
B&W 603 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 6-inch |
1 x 6-inch |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
703 S2 features a 1" Tweeter , a 6" Midrange and 2 x 6.5" Aerofoil Woofer . On the other hand, the BW 603 features a 1" Tweeter , a 6" Midrange and 2 x 6.5" Paper Woofer .
Frequency Response
703 S2 has a frequency range of 46-28k Hz whereas BW 603 has a frequency range of 48-28k Hz. With a minimum frequency of 46Hz, the 703 S2 can go slightly deeper then the BW 603's min frequency of 48Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing 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
703 S2 and BW 603 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. 703 S2 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. 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.
703 S2 and BW 603 has the same power range of 30-200 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 703 S2 and BW 603 features dual binding post speaker terminals for bi-amping or bi-wiring.
B&W 703 S2's Binding post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both 703 S2 and BW 603 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 703 S2's and B&W 603's external dimensions. B&W 703 S2 has external dimensions of 1025.0 x 200.0 x 321.0mm ( 40.4-inch x 12-11/16-inch x 12.6-inch) whereas B&W 603 has external dimensions of 985.0 x 190.0 x 340.0mm ( 38.7 x 7.4 x 13.3inch) .
B&W 603 is 10mm narrower and 40mm shorter than B&W 703 S2 but it is also 19mm deeper.
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 703 S2 is approximately 642.0cm2 / 99.5inch2 and base area of the B&W 603 is approximately 646.0cm2 / 100.1inch2. The 703 S2 requires 1% less surface area than the BW 603 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 703 S2 weighs 25.00kg / 55lbs and the B&W 603 weighs 24.14kg / 53.1lbs. This makes the 703 S2 4% heavier than the BW 603.
Here is a comparison of how 703 S2 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 B&W 703 S2?
Here are the items that are included inside the box of 703 S2:
Floorstanding loudspeakerGrillePlinth (base)2 Jumper-straps (pre-installed)Two-piece foam port plug4 Rubber feet4 Spike feet4 Lock-nuts4 Screws4 Washers4 Lock washersHex-keyManualBowers & Wilkins brochureWarranty Information
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 |
46 Hz
vs
48 Hz
|
Generates deeper bass |
 Base Surface Area |
642cm2
vs
646cm2
|
Takes less floor space |
 Height |
985mm
vs
1025mm
|
Easier to fit in smaller spaces |
| General |
Bowers & Wilkins 703 S2 |
Bowers & Wilkins 603 |
| Brand |
Bowers Wilkins |
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 |
3.1 ohms |
n/a |
| Frequency Response |
46-28k Hz |
48-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Aerofoil |
Paper |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
6" |
6" |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
1025.0mm (40.4") |
985.0mm (38.8") |
| Width |
200.0mm (7.9") |
190.0mm (7.5") |
| Depth |
321.0mm (12.6") |
340.0mm (13.4") |
| Weight |
25.00kg (55lbs) |
24.14kg (53.1lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Lacquer |
MDF/Vinyl |
| Available Colors |
Rosewood, Gloss Black, Satin White |
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 |