In this review, we will be comparing DB2D and ASW608, 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 DB2D and B&W ASW608 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 DB2D and B&W ASW608 have a totally different setup: the B&W DB2D features 2 x 10-inch drivers whereas the ASW608 features 1 x 8-inch drivers.
Frequency Response
DB2D has a frequency range of 10-350 Hz whereas ASW608 has a frequency range of 32-140 Hz. With a minimum frequency of 10Hz, the DB2D can go significantly deeper on the low side and provide stronger bass compared to the ASW608's min frequency of 32Hz.
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 DB2D and B&W ASW608 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 DB2D's and B&W ASW608's external dimensions. B&W DB2D has external dimensions of 386.0 x 431.0 x 410.0mm (15-3/16inch x 16-15/16inch x 16-1/8inch) whereas B&W ASW608 has external dimensions of 272.0 x 261.0 x 350.0mm (10-11/16 x 10-1/4 x 13-3/4inch).
B&W DB2D is clearly the larger of the two speakers. Its body is 170mm wider, 114mm taller and 60mm deeper than B&W ASW608.
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 DB2D is approximately 1767.1cm2 / 273.9inch2 and base area of the B&W ASW608 is approximately 913.5cm2 / 141.6inch2. The DB2D requires 93% more surface area than the ASW608 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 DB2D weighs 36.09kg / 79.4lbs and the B&W ASW608 weighs 8.86kg / 19.5lbs. This makes the DB2D 307% heavier than the ASW608.
Here is a comparison of how DB2D and ASW608'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 DB2D?
Here are the items that are included inside the box of DB2D:
- Powered subwoofer
- 2 Grilles
- 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 ASW608?
Here are the items that come with the ASW608:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- 4 Rubber feet
- 4 Spike feet
- 4 Lock-nuts
- Manual
- Bowers & Wilkins brochure
- Warranty Information
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
| Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
10 Hz
vs
32 Hz
|
Generates deeper bass |
 High Frequency Response |
350 Hz
vs
140 Hz
|
Generates higher frequency |
 Height |
272mm
vs
386mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
913cm2
vs
1767cm2
|
Takes less floor space |
 Price per pair* |
599USD
vs
4499USD
|
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 DB2D needs about 93% more floor area. B&W DB2D stands 60mm further into the room. B&W DB2D is 114mm taller.
| General |
Bowers & Wilkins DB2D |
Bowers & Wilkins ASW608 |
| Brand |
Bowers Wilkins |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
200 watts |
| Frequency Response |
10-350 Hz |
32-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
1000-watt RMS |
200-watt RMS |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
10" |
8" |
| Woofer Composition |
Aerofoil |
Paper/Aramid Fiber |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
386.0mm (15.2") |
272.0mm (10.7") |
| Width |
431.0mm (17") |
261.0mm (10.3") |
| Depth |
410.0mm (16.1") |
350.0mm (13.8") |
| Weight |
36.09kg (79.4lbs) |
8.86kg (19.5lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Available Colors |
Gloss Black,Satin White |
n/a |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
Two quite different sizes of subwoofer. Room volume decides this more than anything else on the page: a big driver in a small room is wasted, and a small one in a large room is worked to death.
| Area | Better | Why |
|---|
| Bass depth | A | B&W DB2D goes deeper - 10Hz against 32Hz. 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 DB2D has the bigger amplifier - 1000W against 200W RMS, about 7dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | B&W DB2D moves more air: 2 x 10" against 8" is 3.13x the cone area, not the 1.77x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Speaker-level inputs | B | B&W ASW608 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. |
| Driver placement | depends | B&W DB2D fires side and B&W ASW608 fires front. A down-firing driver is more forgiving of a grille-less look and of a hard floor; a front-firing one is the safer choice on a thick carpet or a suspended timber floor. |
| Cabinet size | depends | B&W ASW608 is about 64% 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 ASW608 costs less - $599 against $4,499, about 87% less. |
A B&W DB2D B B&W ASW608
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 DB2D measures better, B&W ASW608 costs about 87% 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 ASW608 is the only one of these two you can connect at all. Two small subwoofers beat one big one in most rooms - a pair evens out the room modes in a way no single box can, whatever its specs. At $599 each, two B&W ASW608 cost about $1,198 against $4,499 for one of the other, which is worth a thought.
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.