In this review, we will be comparing Gravis II and PB-2000 Pro, two Powered Subwoofer speakers from Sonus faber and SVS. 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 II and SVS PB-2000 Pro 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.
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Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Both Sonus faber Gravis IIand SVS PB-2000 Pro have a single woofer setup however the Sonus faber Gravis II's woofer is 10-inch whereas the SVS PB-2000 Pro features a 12-inch woofer.
Frequency Response
Gravis II has a frequency range of 25-120 Hz whereas PB-2000 Pro has a frequency range of 16-290 Hz. With a minimum frequency of 16Hz, the PB-2000 Pro can go significantly deeper on the low side and provide stronger bass compared to the Gravis II'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
The Sonus faber Gravis II has a Passive Radiator type cabinet. Passive Radiator type subwoofers sports a non-powered cone that moves in response to the main woofer to move air out in order to generate stronger bass in a smaller body compared to ported or sealed designs. On the other hand the SVS PB-2000 Pro have Bass Reflex type enclosure. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed 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 II's and SVS PB-2000 Pro's external dimensions. Sonus faber Gravis II has external dimensions of 407.0 x 358.0 x 435.0mm (16inch x 14-1/16inch x 17-1/8inch) whereas SVS PB-2000 Pro has external dimensions of 534.0 x 442.0 x 609.0mm (21 x 17-3/8 x 23-15/16inch).
SVS PB-2000 Pro is clearly the larger of the two speakers. Its body is 84mm wider, 127mm taller and 174mm deeper than Sonus faber Gravis II.
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 II is approximately 1557.3cm2 / 241.4inch2 and base area of the SVS PB-2000 Pro is approximately 2691.8cm2 / 417.2inch2. The Gravis II requires 42% less surface area than the PB-2000 Pro 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 Sonus faber Gravis II weighs 21.50kg / 47.3lbs and the SVS PB-2000 Pro weighs 29.45kg / 64.8lbs. This makes the PB-2000 Pro 37% heavier than the Gravis II.
Here is a comparison of how Gravis II and PB-2000 Pro's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Sonus faber Gravis II?
Here are the items that are included inside the box of Gravis II:
- Powered subwoofer
- Grille
- 6-feet AC power cord
- 33-feet Speakon cable
- Owners Manual
- Environmental Information
What's in the Box of SVS PB-2000 Pro?
Here are the items that come with the PB-2000 Pro:
- Powered subwoofer
- Grille
- 8-feet AC power cord
- Quick Start Guide
- Safety Instructions
- SVS brochure
 Passive Radiator |
2 x 10-inch
vs
None
|
Increases the bass performance |
 Height |
407mm
vs
534mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1557cm2
vs
2691cm2
|
Takes less floor space |
 Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
| Low Frequency Response |
16 Hz
vs
25 Hz
|
Generates deeper bass |
 High Frequency Response |
290k Hz
vs
120k Hz
|
Generates higher frequency |
| App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Price per pair* |
1100USD
vs
1499USD
|
costs less (*prices may change depending on the seller, location and time) |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| General |
Sonus faber Gravis II |
SVS PB-2000 Pro |
| Brand |
Sonus faber |
SVS |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
350 watts |
550 watts |
| Frequency Response |
25-120 Hz |
16-290 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
350-watt RMS |
550-watt RMS |
| Watts Peak (Max) |
n/a |
1500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
12" |
| Woofer Composition |
Treated Paper |
Aluminum |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
407.0mm (16") |
534.0mm (21") |
| Width |
358.0mm (14.1") |
442.0mm (17.4") |
| Depth |
435.0mm (17.1") |
609.0mm (24") |
| Weight |
21.50kg (47.3lbs) |
29.45kg (64.8lbs) |
| Enclosure |
Passive Radiator |
Bass Reflex |
| Available Colors |
Piano Black,Matte White |
n/a |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Yr/3 Yr registered |
5 Years |
| Labor Warranty |
2 Yr/3 Yr registered |
5 Years |