In this review, we will be comparing Gravis III and ASW610, two Powered Subwoofer speakers from Sonus faber 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 Sonus faber Gravis III and B&W ASW610 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.Sonus faber Gravis IIIand B&W ASW610 have the same driver set up: Both subwoofers have 1 x 10" drivers.
Frequency Response
Gravis III has a frequency range of 25-120 Hz whereas ASW610 has a frequency range of 27-140 Hz. With a minimum frequency of 25Hz, the Gravis III can go slightly deeper then 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 Sonus faber Gravis III 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
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 Sonus faber Gravis III's and B&W ASW610's external dimensions. Sonus faber Gravis III has external dimensions of 415.0 x 400.0 x 495.0mm (16-5/16 x 15-3/4 x 19-1/2inch) 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).
Sonus faber Gravis III is clearly the larger of the two speakers. Its body is 88mm wider, 94mm taller and 101mm deeper than B&W ASW610.
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.
Sonus faber Gravis III needs about 61% more floor or shelf area. Sonus faber Gravis III is 101mm deeper, so it stands that much further out from the wall. Sonus faber Gravis III is 94mm 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 Sonus faber Gravis III is approximately 1980.0cm2 / 306.9inch2 and base area of the B&W ASW610 is approximately 1229.3cm2 / 190.5inch2. The Gravis III requires 61% more surface area than the ASW610 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 Sonus faber Gravis III weighs 26.70kg / 58.7lbs and the B&W ASW610 weighs 12.55kg / 27.6lbs. This makes the Gravis III 113% heavier than the ASW610.
Here is a comparison of how Gravis III and ASW610's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
25 Hz
vs
27 Hz
|
Generates deeper bass |
 High Frequency Response |
140 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
321mm
vs
415mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1229cm2
vs
1980cm2
|
Takes less floor space |
 Price per pair* |
899USD
vs
2700USD
|
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.
Sonus faber Gravis III needs about 61% more floor area. Sonus faber Gravis III stands 101mm further into the room. Sonus faber Gravis III is 94mm taller.
| General |
Sonus faber Gravis III |
Bowers & Wilkins ASW610 |
| Brand |
Sonus faber |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
600 watts |
200 watts |
| Frequency Response |
25-120 Hz |
27-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
600-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
900-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Honeycomb sandwich |
Paper/Aramid Fiber |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
Continuously adjustable |
n/a |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
415.0mm (16.3") |
321.0mm (12.6") |
| Width |
400.0mm (15.7") |
312.0mm (12.3") |
| Depth |
495.0mm (19.5") |
394.0mm (15.5") |
| Weight |
26.70kg (58.7lbs) |
12.55kg (27.6lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 Years |
Different price classes - Sonus faber Gravis III costs roughly 3x what B&W ASW610 does. Before paying it, read the note below about two smaller subwoofers.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (25Hz vs 27Hz). |
| Amplifier power | A | Sonus faber Gravis III has the bigger amplifier - 600W against 200W RMS, about 4.8dB 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. |
| Cabinet size | depends | B&W ASW610 is about 52% 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 ASW610 costs less - $899 against $2,700, about 67% less. |
A Sonus faber Gravis III B B&W ASW610
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?
Sonus faber Gravis III is ahead, but on only 1 of the measured areas, and it costs about 3x the price. B&W ASW610 is the sensible buy unless your room is large enough to need the extra. 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 $899 each, two B&W ASW610 cost about $1,798 against $2,700 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 ASW610 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.