In this review, we will be comparing PULSE SUB+ and ASW608, two Powered Subwoofer speakers from Bluesound 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 Bluesound PULSE SUB+ 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.Bluesound PULSE SUB+and B&W ASW608 have the same driver set up: Both subwoofers have 1 x 8" drivers.
Frequency Response
PULSE SUB+ has a frequency range of 22-150 Hz whereas ASW608 has a frequency range of 32-140 Hz. With a minimum frequency of 22Hz, the PULSE SUB+ 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
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 Bluesound PULSE SUB+'s and B&W ASW608's external dimensions. Bluesound PULSE SUB+ has external dimensions of 300 x 457 x 146 mm () 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 ASW608 is 196mm narrower and 28mm shorter than Bluesound PULSE SUB+ but it is also 204mm deeper.
Size, drawn to scale
Both speakers 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 surface and pushed back to the same wall, so the deeper one visibly sticks out further.
B&W ASW608 needs about 37% more floor or shelf area. B&W ASW608 is 204mm deeper, so it stands that much further out from the wall. Bluesound PULSE SUB+ is 28mm taller.
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 Bluesound PULSE SUB+ is approximately 667.2cm2 / 103.4inch2 and base area of the B&W ASW608 is approximately 913.5cm2 / 141.6inch2. The PULSE SUB+ requires 27% less surface area than the ASW608 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 Bluesound PULSE SUB+ weighs 8.28kg / 18.2lbs and the B&W ASW608 weighs 8.86kg / 19.5lbs. This makes the ASW608 7% heavier than the PULSE SUB+.
Here is a comparison of how PULSE SUB+ and ASW608's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
22 Hz
vs
32 Hz
|
Generates deeper bass |
 High Frequency Response |
150 Hz
vs
140 Hz
|
Generates higher frequency |
 App-Based Control |
BluOS Controller (iOS, Android)
vs
None
|
Control the speaker via an app |
 Base Surface Area |
667cm2
vs
913cm2
|
Takes less floor space |
 Ethernet Connection |
Yes
vs
No
|
High quality streaming over Ethernet |
 Wireless Operation |
Yes
vs
No
|
Connect your subwoofer to your system wireless |
 Height |
272mm
vs
300mm
|
Easier to fit in smaller spaces |
 Price per pair* |
599USD
vs
1149USD
|
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 ASW608 needs about 37% more floor area. B&W ASW608 stands 204mm further into the room. Bluesound PULSE SUB+ is 28mm taller.
| General |
Bluesound PULSE SUB+ |
Bowers & Wilkins ASW608 |
| Brand |
Bluesound |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
22-150 Hz |
32-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
150-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
200-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
8" |
| Woofer Composition |
Polypropylene |
Paper/Aramid Fiber |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
300.0mm (11.8") |
272.0mm (10.7") |
| Width |
457.0mm (18") |
261.0mm (10.3") |
| Depth |
146.0mm (5.7") |
350.0mm (13.8") |
| Weight |
8.28kg (18.2lbs) |
8.86kg (19.5lbs) |
| Enclosure |
|
Acoustic Suspension |
| Finish |
Matte |
n/a |
| Available Colors |
Black, White |
n/a |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| USB Port |
Type A (upgrade only), Type B mini (service) |
n/a |
| Ethernet Port |
Yes |
n/a |
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 Years |
Different price classes - Bluesound PULSE SUB+ costs roughly 1.9x what B&W ASW608 does. Before paying it, read the note below about two smaller subwoofers.
| Area | Better | Why |
|---|
| Bass depth | A | Bluesound PULSE SUB+ goes deeper - 22Hz against 32Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | B | B&W ASW608 has the bigger amplifier - 200W against 150W RMS, about 1.2dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | evenly matched | Near-identical radiating area (8" against 8"). |
| Wireless option | depends | Only Bluesound PULSE SUB+ offers a wireless link. It decides where the sub can go if you cannot run a cable, and is worth nothing if you can. |
| Cabinet size | depends | Bluesound PULSE SUB+ is about 19% 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 $1,149, about 48% less. |
A Bluesound PULSE SUB+ 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?
Neither runs away with it - they trade advantages. Let your room size and where the box can actually stand settle it. 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 $1,149 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.