In this review, we will be comparing PC13-Ultra and KC92, 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 PC13-Ultra and KEF KC92 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 PC13-Ultra and KEF KC92 compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
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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.SVS PC13-Ultra and KEF KC92 have a totally different setup: the SVS PC13-Ultra features 1 x 13.5-inch drivers whereas the KC92 features 2 x 9-inch drivers.
Frequency Response
PC13-Ultra has a frequency range of 15-200 Hz whereas KC92 has a frequency range of 11-200 Hz. With a minimum frequency of 11Hz, the KC92 can go slightly deeper then the PC13-Ultra's min frequency of 15Hz.
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 PC13-Ultra 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 KC92 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 PC13-Ultra's and KEF KC92's external dimensions. SVS PC13-Ultra has external dimensions of 1194.0 x 422.0 x 422.0mm ( 47 x 16-5/8 x 16-5/8inch) whereas KEF KC92 has external dimensions of 352.5 x 330 x 360.5 mm ( 13.88 x 13.00 x 14.19 in) .
SVS PC13-Ultra is clearly the larger of the two speakers. Its body is 92mm wider, 842mm taller and 61mm deeper than KEF KC92.
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 PC13-Ultra is approximately 1780.8cm2 / 276.0inch2 and base area of the KEF KC92 is approximately 1191.3cm2 / 184.7inch2. The PC13-Ultra requires 49% more surface area than the KC92 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 PC13-Ultra weighs 40.80kg / 89.8lbs and the KEF KC92 weighs 20.00kg / 44lbs. This makes the PC13-Ultra 104% heavier than the KC92.
Here is a comparison of how PC13-Ultra and KC92's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
13.5 inches
vs
9 inches
|
Larger woofer |
 Price per pair* |
1700USD
vs
1999USD
|
costs less (*prices may change depending on the seller, location and time) |
| Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
11 Hz
vs
15 Hz
|
Generates deeper bass |
 Height |
352mm
vs
1194mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1191cm2
vs
1780cm2
|
Takes less floor space |
| General |
SVS PC13-Ultra |
KEF KC92 |
| Brand |
SVS |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
1000 watts |
| Frequency Response |
15-200 Hz |
11-200 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
1000-watt RMS |
1000-watt RMS |
| Watts Peak (Max) |
3600-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
2 |
| Woofer Size |
13.5" |
9" |
| Woofer Composition |
Fiberglass composite |
Polypropylene |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
40-140 Hz |
| Firing Direction |
front |
n/a |
Physical Specs |
|
|
| Height |
1194.0mm (47") |
352.0mm (13.9") |
| Width |
422.0mm (16.6") |
330.0mm (13") |
| Depth |
422.0mm (16.6") |
361.0mm (14.2") |
| Weight |
40.80kg (89.8lbs) |
20.00kg (44lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
2 Years |
| Labor Warranty |
5 Years |
2 Years |