In this review, we will be comparing KF92 and ASW610, two Powered Subwoofer speakers from KEF and Bowers Wilkins. Being Powered subwoofers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them. Let's have a brief look at the main features of KEF KF92 and B&W ASW610 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the KEF KF92 and B&W ASW610 compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.KEF KF92 and B&W ASW610 have a totally different setup: the KEF KF92 features 2 x 9-inch drivers whereas the ASW610 features 1 x 10-inch drivers.
Frequency Response
KF92 has a frequency range of 11-200 Hz whereas ASW610 has a frequency range of 27-140 Hz. With a minimum frequency of 11Hz, the KF92 can go significantly deeper on the low side and provide stronger bass compared to the ASW610's min frequency of 27Hz.
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 Subwoofer class in our database.
Low Frequency
Subwoofer Speakers
High Frequency
Subwoofer Speakers
Cabinet Type
Both KEF KF92 and B&W ASW610 have Acoustic Suspension type cabinets. Acoustic Suspension aka Sealed type subwoofers have enclosures that are sealed hence no ports or holes exists on the cabinet. Sealed designs helps to provide more accurate and tight bass responses compared to ported designs.
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 KEF KF92's and B&W ASW610's external dimensions. KEF KF92 has external dimensions of 353.0 x 331.0 x 362.0mm ( 13-7/8 x 13 x 14-1/4inch) whereas B&W ASW610 has external dimensions of 321.0 x 312.0 x 394.0mm ( 12-5/8 x 12-1/4 x 15-1/2inch) .
B&W ASW610 is 19mm narrower and 32mm shorter than KEF KF92 but it is also 32mm deeper.
Below you can see the front view size comparison of KEF KF92 and B&W ASW610 in scale.
Comparison image of KEF KF92 and B&W ASW610 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 KEF KF92 is approximately 1198.2cm2 / 185.7inch2 and base area of the B&W ASW610 is approximately 1229.3cm2 / 190.5inch2. The KF92 requires 3% less surface area than the ASW610 which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a subwoofer may become an important factor if you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. The KEF KF92 weighs 20.05kg / 44.1lbs and the B&W ASW610 weighs 12.55kg / 27.6lbs. This makes the KF92 60% heavier than the ASW610.
Here is a comparison of how KF92 and ASW610's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of KEF KF92?
Here are the items that are included inside the box of KF92:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
What's in the Box of B&W ASW610?
Here are the items that come with the ASW610:
Powered subwooferGrille6.5-feet AC power cord4 Rubber feet4 Spike feet4 Lock-nutsManualBowers & Wilkins brochureWarranty Information
 Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
11 Hz
vs
27 Hz
|
Generates deeper bass |
 High Frequency Response |
200k Hz
vs
140k Hz
|
Generates higher frequency |
 Base Surface Area |
1198cm2
vs
1229cm2
|
Takes less floor space |
| Woofer Size |
10 inches
vs
9 inches
|
Larger woofer |
 Height |
321mm
vs
353mm
|
Easier to fit in smaller spaces |
 Price per pair* |
899USD
vs
2000USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
KEF KF92 |
Bowers & Wilkins ASW610 |
| Brand |
KEF |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
200 watts |
| Frequency Response |
11-200 Hz |
27-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
1000-watt RMS |
200-watt RMS |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
9" |
10" |
| Woofer Composition |
Hybrid aluminum |
Paper/Aramid Fiber |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
353.0mm (13.9") |
321.0mm (12.6") |
| Width |
331.0mm (13") |
312.0mm (12.3") |
| Depth |
362.0mm (14.3") |
394.0mm (15.5") |
| Weight |
20.05kg (44.1lbs) |
12.55kg (27.6lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |