In this review, we will be comparing Dynamo 10 and ASW608, two Powered Subwoofer speakers from MartinLogan 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 MartinLogan Dynamo 10 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.Both MartinLogan Dynamo 10and B&W ASW608 have a single woofer setup however the MartinLogan Dynamo 10's woofer is 10-inch whereas the B&W ASW608 features a 8-inch woofer.
Frequency Response
Dynamo 10 has a frequency range of 23-200 Hz whereas ASW608 has a frequency range of 32-140 Hz. With a minimum frequency of 23Hz, the Dynamo 10 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 MartinLogan Dynamo 10's and B&W ASW608's external dimensions. MartinLogan Dynamo 10 has external dimensions of 373.1 x 349.3 x 404.8mm () 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).
MartinLogan Dynamo 10 is clearly the larger of the two speakers. Its body is 88.3mm wider, 101.1mm taller and 54.8mm deeper than B&W ASW608.
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.
MartinLogan Dynamo 10 needs about 55% more floor or shelf area. MartinLogan Dynamo 10 is 55mm deeper, so it stands that much further out from the wall. MartinLogan Dynamo 10 is 101mm 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 MartinLogan Dynamo 10 is approximately 1414.0cm2 / 219.2inch2 and base area of the B&W ASW608 is approximately 913.5cm2 / 141.6inch2. The Dynamo 10 requires 55% 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 MartinLogan Dynamo 10 weighs 19.41kg / 42.7lbs and the B&W ASW608 weighs 8.86kg / 19.5lbs. This makes the Dynamo 10 119% heavier than the ASW608.
Here is a comparison of how Dynamo 10 and ASW608's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
23 Hz
vs
32 Hz
|
Generates deeper bass |
 High Frequency Response |
200 Hz
vs
140 Hz
|
Generates higher frequency |
 Height |
272mm
vs
373mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
913cm2
vs
1414cm2
|
Takes less floor space |
 Price per pair* |
599USD
vs
1200USD
|
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.
MartinLogan Dynamo 10 needs about 55% more floor area. MartinLogan Dynamo 10 stands 55mm further into the room. MartinLogan Dynamo 10 is 101mm taller.
| General |
MartinLogan Dynamo 10 |
Bowers & Wilkins ASW608 |
| Brand |
MartinLogan |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
23-200 Hz |
32-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
500-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
1000-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
8" |
| Woofer Composition |
|
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 |
373.1mm (14.7") |
272.0mm (10.7") |
| Width |
349.3mm (13.8") |
261.0mm (10.3") |
| Depth |
404.8mm (15.9") |
350.0mm (13.8") |
| Weight |
19.41kg (42.7lbs) |
8.86kg (19.5lbs) |
| Enclosure |
|
Acoustic Suspension |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years w/ registration |
2 Years |
| Labor Warranty |
3 Years w/ registration |
2 Years |
Different price classes - MartinLogan Dynamo 10 costs roughly 2x what B&W ASW608 does. Before paying it, read the note below about two smaller subwoofers.
| Area | Better | Why |
|---|
| Bass depth | A | MartinLogan Dynamo 10 goes deeper - 23Hz against 32Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | A | MartinLogan Dynamo 10 has the bigger amplifier - 500W against 200W RMS, about 4dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | MartinLogan Dynamo 10 moves more air: 10" against 8" is 1.56x the cone area, not the 1.25x 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. |
| Cabinet size | depends | B&W ASW608 is about 53% 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. |
| Warranty | A | MartinLogan Dynamo 10 carries 3 years on parts against 2 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | B | B&W ASW608 costs less - $599 against $1,200, about 50% less. |
A MartinLogan Dynamo 10 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: MartinLogan Dynamo 10 measures better, B&W ASW608 costs about 50% less. In a normal room, placement will make a bigger difference than the gap between these two. 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 $1,200 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - B&W ASW608 is the one that will actually go there, and a well-placed small subwoofer beats a badly-placed big one every time.
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.