In this review, we will be comparing two different type of speakers by Bowers Wilkins. Bowers & Wilkins 603 is a Floor-standing speaker whereas the BW 606 is a Bookshelf speaker.
Let's have a brief look at the main features
of B&W 603 and B&W 606 first before getting into our more
detailed comparison.
B&W 603 Key Specs
- 3-way Design
- 1" Tweeter
- 6" Midrange
- 2 x 6.5" Paper Woofer
- 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 )
B&W 606 Key Specs
- 2-way Design
- 1" Hard-Dome Tweeter
- 6.5" Continuum Woofer
- 52-28k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-120watts
- Weight:6.90kg
- Dimensions (H x W x D): 345.0" x 7-1/2" x 12-13/16"( 345.0 x 190.0 x 324.0mm )
BW 603 and BW 606 are members of Bowers Wilkins's 600 series of speakers. Below you can find the loudspeakers from this series.
What size room are the B&W 603 and B&W 606 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 603 |
B&W 606 |
| Near-field |
Bad |
Poor |
| Small Room |
Poor |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Average |
| 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 603 and B&W 606 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 BW 603 is a 3-way design whereas the BW 606 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 |
B&W 603 |
B&W 606 |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 6-inch |
- |
|
Woofer
|
2 x 6.5-inch
|
1 x 6.5-inch
|
BW 603 features a 1" Tweeter , a 6" Midrange and 2 x 6.5" Paper Woofer . On the other hand, the BW 606 features a 1" Decoupled Carbon Hard-Dome Tweeter and 1 x 6.5" Continuum Woofer .
Frequency Response
BW 603 has a frequency range of 48-28k Hz whereas BW 606 has a frequency range of 52-28k Hz. With a minimum frequency of 48Hz, the BW 603 can go slightly deeper then the BW 606's min frequency of 52Hz.
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
BW 603 and BW 606 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. BW 603 sensitivity is rated at 88.5 dB and the BW 606's is at 88 dB. This 1 dB difference makes the B&W 603 a more sensitive speaker compared to B&W 606, hence will play louder with the same amount of watts.
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.
BW 603 can handle a max power of 200 watts RMS from the amp the whereas BW 606 has a max power handling value of 120 watts RMS, 80 watts less than the BW 603.
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 BW 603 and BW 606 features dual binding post speaker terminals for bi-amping or bi-wiring.
B&W 606's Post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both BW 603 and BW 606 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 603's and B&W 606's external dimensions. B&W 603 has external dimensions of 985.0 x 190.0 x 340.0mm ( 38.7 x 7.4 x 13.3inch) whereas B&W 606 has external dimensions of 345.0 x 190.0 x 324.0mm ( 13.5 x 7.4 x 12.7inch) .
Below you can see the front view size comparison of B&W 603 and B&W 606 in scale.
Comparison image of B&W 603 and B&W 606 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 B&W 603 is approximately 646.0cm2 / 100.1inch2 and base area of the B&W 606 is approximately 615.6cm2 / 95.4inch2. The BW 603 requires 5% more surface area than the BW 606 which gives it a small disadvantage on placement in tight spaces.
What's in the Box of B&W 603?
Here are the items that are included inside the box of 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
What's in the Box of B&W 606?
Here are the items that come with the BW 606:
2 Bookshelf loudspeakers2 Grilles2 Two-piece foam port plugs8 Self-adhesive rubber feet4 Jumper-straps (pre-installed)ManualBowers & Wilkins brochureWarranty Information
Max Input Power 
Driver Setup 
Sensitivity 
Number of Woofers 
Height 
Base Surface Area