In this review, we will be comparing DB4S and ASW610XP, two Powered Subwoofer speakers by 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 B&W DB4S and B&W ASW610XP first before getting into our more detailed comparison.
The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.B&W DB4Sand B&W ASW610XP have the same driver set up: Both subwoofers have 1 x 10" drivers.
Frequency Response
DB4S has a frequency range of 10-350 Hz whereas ASW610XP has a frequency range of 25-140 Hz. With a minimum frequency of 10Hz, the DB4S can go significantly deeper on the low side and provide stronger bass compared to the ASW610XP's min frequency of 25Hz.
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 B&W DB4S and B&W ASW610XP 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
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 B&W DB4S's and B&W ASW610XP's external dimensions. B&W DB4S has external dimensions of 375.0 x 362.0 x 434.0mm (14-3/4 x 14-1/4 x 17-1/16inch) whereas B&W ASW610XP has external dimensions of 337.0 x 328.0 x 410.0mm (13-1/4 x 12-7/8 x 16-1/8inch).
B&W DB4S is clearly the larger of the two speakers. Its body is 34mm wider, 38mm taller and 24mm deeper than B&W ASW610XP.
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 DB4S is approximately 1571.1cm2 / 243.5inch2 and base area of the B&W ASW610XP is approximately 1344.8cm2 / 208.4inch2. The DB4S requires 17% more surface area than the ASW610XP which gives it a small disadvantage 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 B&W DB4S weighs 26.05kg / 57.3lbs and the B&W ASW610XP weighs 18.69kg / 41.1lbs. This makes the DB4S 39% heavier than the ASW610XP.
Here is a comparison of how DB4S and ASW610XP's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of B&W DB4S?
Here are the items that are included inside the box of DB4S:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- 4 Decoupling feet
- 4 Rubber feet
- 4 Spike feet
- 4 Lock-nuts
- Cleaning cloth
- Quickstart Guide
- Bowers & Wilkins brochure
- Warranty Information
- Cleaning cloth instructions
What's in the Box of B&W ASW610XP?
Here are the items that come with the ASW610XP:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- 4 Rubber feet
- 4 Spike feet
- 4 Lock-nuts
- Manual
- Bowers & Wilkins brochure
- Warranty Information
 Low Frequency Response |
10 Hz
vs
25 Hz
|
Generates deeper bass |
 High Frequency Response |
350 Hz
vs
140 Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Height |
337mm
vs
375mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1344cm2
vs
1571cm2
|
Takes less floor space |
 Price per pair* |
1799USD
vs
2199USD
|
costs less (*prices may change depending on the seller, location and time) |
Size, drawn to scale
Both subwoofers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same floor and pushed back to the same wall, so the bigger one visibly takes more of the room.
B&W DB4S needs about 17% more floor area. B&W DB4S stands 24mm further into the room. B&W DB4S is 38mm taller.
| General |
Bowers & Wilkins DB4S |
Bowers & Wilkins ASW610XP |
| Brand |
Bowers Wilkins |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
500 watts |
| Frequency Response |
10-350 Hz |
25-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
n/a |
500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Aerofoil |
Paper/Aramid Fiber/Resin |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
375.0mm (14.8") |
337.0mm (13.3") |
| Width |
362.0mm (14.3") |
328.0mm (12.9") |
| Depth |
434.0mm (17.1") |
410.0mm (16.1") |
| Weight |
26.05kg (57.3lbs) |
18.69kg (41.1lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
Both are Bowers Wilkins, so the design approach is shared and the differences are mostly in output, size and price.
| Area | Better | Why |
|---|
| Bass depth | A | B&W DB4S goes deeper - 10Hz against 25Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | A | B&W DB4S has the bigger amplifier - 1000W against 500W RMS, about 3dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | evenly matched | Near-identical radiating area (10" against 10"). |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Speaker-level inputs | B | B&W ASW610XP takes a speaker-level connection as well as line level. That is what lets it work with an integrated amplifier or a vintage receiver that has no subwoofer output at all. |
| Cabinet size | depends | B&W ASW610XP is about 23% smaller by volume. In a subwoofer that is a real trade rather than a preference: box volume is how you get output low down without a bigger amplifier. |
| Price | B | B&W ASW610XP costs less - $1,799 against $2,199, about 18% less. |
A B&W DB4S B B&W ASW610XP
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 subwoofers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
The usual trade-off: B&W DB4S measures better, B&W ASW610XP costs about 18% less. In a normal room, placement will make a bigger difference than the gap between these two. Check your amplifier first: if it has no subwoofer or preamp output, B&W ASW610XP is the only one of these two you can connect at all.
One thing outweighs everything above: where the subwoofer stands. Room modes can add or remove 10dB or more at a given seat, which is far larger than any difference on this page. Before spending more, try the sub in two or three positions - the crawl test, where you put it in the listening seat and crawl the room to find where the bass sounds best, costs nothing and usually beats an upgrade.