In this review, we will be comparing R700 and BW 603, two Passive Floor-standing speakers from Polk Audio and Bowers Wilkins. Let's have a brief look at the main features
of Polk R700 and B&W 603 first before getting into our more
detailed comparison.
What size room are the Polk R700 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:
In the following sections, we will get into more detail in order to better understand how the Polk R700 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 R700 and BW 603 are 3-way speakers.
| Driver |
Polk R700 |
B&W 603 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 6.5-inch |
1 x 6-inch |
|
Woofer
|
2 x 8-inch
|
2 x 6.5-inch
|
R700 features a 1" Pinnacle Ring Radiator Tweeter , a 6.5" Midrange and 2 x 8" Polypropylene Woofer with a Crossover frequency at 350Hz and 2700Hz. On the other hand, the BW 603 features a 1" Tweeter , a 6" Midrange and 2 x 6.5" Paper Woofer .
Frequency Response
R700 has a frequency range of 38-38k Hz whereas BW 603 has a frequency range of 48-28k Hz. With a minimum frequency of 38Hz, the R700 can go significantly deeper on the low side and provide stronger bass compared to 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
R700 and BW 603 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. R700 sensitivity is rated at 88 dB and the BW 603's is at 88.5 dB. This 1 dB difference makes the B&W 603 a more sensitive speaker compared to Polk R700, 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.
R700 can handle a max power of 300 watts RMS from the amp the whereas BW 603 has a max power handling value of 200 watts RMS, 100 watts less than the R700.
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 R700 and BW 603 features dual binding post speaker terminals for bi-amping or bi-wiring.
Polk R700's Post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
R700 has a bottom firing port whereas BW 603 has a rear firing ports. Polk R700'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.
Polk R700 Port
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 Polk R700's and B&W 603's external dimensions. Polk R700 has external dimensions of 1143.8 x 320.7 x 428.3mm ( 45 x 12.6 x 16.9inch) whereas B&W 603 has external dimensions of 985.0 x 190.0 x 340.0mm ( 38.7 x 7.4 x 13.3inch) .
Polk R700 is clearly the larger of the two speakers. Its body is 130.7mm wider, 158.8mm taller and 88.3mm deeper than B&W 603.
Below you can see the front view size comparison of Polk R700 and B&W 603 in scale.
Comparison image of Polk R700 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 Polk R700 is approximately 1373.6cm2 / 212.9inch2 and base area of the B&W 603 is approximately 646.0cm2 / 100.1inch2. The R700 requires 113% 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 Polk R700 weighs 35.90kg / 79lbs and the B&W 603 weighs 24.14kg / 53.1lbs. This makes the R700 49% heavier than the BW 603.
Here is a comparison of how R700 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 Polk R700?
Here are the items that are included inside the box of R700:
Floorstanding loudspeaker
4 Outrigger feet (pre-installed)
4 Rubber feet (pre-installed)
4 Spike feet (pre-installed)
Grille
Hex-key
Owner's Manual
Online Registration
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
 Max Input Power |
300 watts
vs
200 watts
|
Handle more power from your amplifier |
 Woofer Size |
8 inches
vs
6.5 inches
|
Larger woofer |
| Low Frequency Response |
38 Hz
vs
48 Hz
|
Generates deeper bass |
 High Frequency Response |
38k Hz
vs
28k Hz
|
Generates higher frequency |
 Sensitivity |
89 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Height |
985mm
vs
1143mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
646cm2 (190x340mm)
vs
1373cm2 (320x428mm)
|
Takes less floor space |
| General |
Polk Audio Reserve R700 |
Bowers & Wilkins 603 |
| Brand |
Polk Audio |
Bowers Wilkins |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
50-300 watts |
30-200 watts |
| Sensitivity |
88 dB |
88.5 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
3.6 ohms |
n/a |
| Frequency Response |
38-38k Hz |
48-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
8" |
6.5" |
| Woofer Composition |
Polypropylene |
Paper |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Pinnacle Ring Radiator |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
6.5" |
6" |
| Crossover Frequency |
350Hz and 2700Hz |
n/a |
| Firing Direction |
bottom |
rear |
Physical Specs |
|
|
| Height |
1143.8mm (45") |
985.0mm (38.8") |
| Width |
320.7mm (12.6") |
190.0mm (7.5") |
| Depth |
428.3mm (16.9") |
340.0mm (13.4") |
| Weight |
35.90kg (79lbs) |
24.14kg (53.1lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Vinyl |
MDF/Vinyl |
| Available Colors |
Black, Walnut, 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 |