In this review, we will be comparing PB-1000 Pro and KUBE 12b, two Powered Subwoofer speakers from SVS and KEF. 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 SVS PB-1000 Pro and KEF KUBE 12b first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the SVS PB-1000 Pro and KEF KUBE 12b compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.SVS PB-1000 Proand KEF KUBE 12b have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
PB-1000 Pro has a frequency range of 17-260 Hz whereas KUBE 12b has a frequency range of 22-140 Hz. With a minimum frequency of 17Hz, the PB-1000 Pro can go significantly deeper on the low side and provide stronger bass compared to the KUBE 12b's min frequency of 22Hz.
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 SVS PB-1000 Pro has a Bass Reflex type cabinet. 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. On the other hand the KEF KUBE 12b have Acoustic Suspension type enclosure. 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
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare SVS PB-1000 Pro's and KEF KUBE 12b's external dimensions. SVS PB-1000 Pro has external dimensions of 479.0 x 380.0 x 509.0mm ( 18-13/16inch x 15inch x 20-15/16inch ) whereas KEF KUBE 12b has external dimensions of 410.0 x 396.0 x 442.0mm ( 16-1/8 x 15-9/16 x 17-3/8inch) .
KEF KUBE 12b is 69mm shorter and 67mm less deeper than SVS PB-1000 Pro but it is also 16mm wider.
Below you can see the front view size comparison of SVS PB-1000 Pro and KEF KUBE 12b in scale.
Comparison image of SVS PB-1000 Pro and KEF KUBE 12b Size and External Dimensions
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 SVS PB-1000 Pro is approximately 1934.2cm2 / 299.8inch2 and base area of the KEF KUBE 12b is approximately 1750.3cm2 / 271.3inch2. The PB-1000 Pro requires 11% more surface area than the KUBE 12b 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 SVS PB-1000 Pro weighs 19.30kg / 42.5lbs and the KEF KUBE 12b weighs 20.68kg / 45.5lbs. This makes the KUBE 12b 7% heavier than the PB-1000 Pro.
Here is a comparison of how PB-1000 Pro and KUBE 12b's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of SVS PB-1000 Pro?
Here are the items that are included inside the box of PB-1000 Pro:
Powered subwooferGrille6-feet AC power cordQuick Start GuideBrochureSVS Support Information
What's in the Box of KEF KUBE 12b?
Here are the items that come with the KUBE 12b:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
 Low Frequency Response |
17 Hz
vs
22 Hz
|
Generates deeper bass |
 High Frequency Response |
260k Hz
vs
140k Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Price per pair* |
799USD
vs
900USD
|
costs less (*prices may change depending on the seller, location and time) |
 Height |
410mm
vs
479mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1750cm2 (396x442mm)
vs
1934cm2 (380x509mm)
|
Takes less floor space |
| General |
SVS PB-1000 Pro |
KEF KUBE 12b |
| Brand |
SVS |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
325 watts |
300 watts |
| Frequency Response |
17-260 Hz |
22-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
325-watt RMS |
300-watt RMS |
| Watts Peak (Max) |
820-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
Fiber-composite |
Not given |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
40-140 Hz |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
479.0mm (18.9") |
410.0mm (16.1") |
| Width |
380.0mm (15") |
396.0mm (15.6") |
| Depth |
509.0mm (20") |
442.0mm (17.4") |
| Weight |
19.30kg (42.5lbs) |
20.68kg (45.5lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Available Colors |
Black |
n/a |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
2 Years |
| Labor Warranty |
5 Years |
2 Years |