In this review, we will be comparing PB 5000 R Evolution and KF92, 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 5000 R Evolution and KEF KF92 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.SVS PB 5000 R Evolution and KEF KF92 have a totally different setup: the SVS PB 5000 R Evolution features 1 x 15-inch drivers whereas the KF92 features 2 x 9-inch drivers.
Frequency Response
PB 5000 R Evolution has a frequency range of 13-180 Hz whereas KF92 has a frequency range of 11-200 Hz. With a minimum frequency of 11Hz, the KF92 can go slightly deeper then the PB 5000 R Evolution's min frequency of 13Hz.
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 SVS PB 5000 R Evolution's and KEF KF92's external dimensions. SVS PB 5000 R Evolution has external dimensions of 595.3 x 520.7 x 730.3mm () whereas KEF KF92 has external dimensions of 353.0 x 331.0 x 362.0mm (13-7/8 x 13 x 14-1/4inch).
SVS PB 5000 R Evolution is clearly the larger of the two speakers. Its body is 189.7mm wider, 242.3mm taller and 368.3mm deeper than KEF KF92.
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 5000 R Evolution is approximately 3802.7cm2 / 589.4inch2 and base area of the KEF KF92 is approximately 1198.2cm2 / 185.7inch2. The PB 5000 R Evolution requires 217% more surface area than the KF92 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 5000 R Evolution weighs 69.81kg / 153.6lbs and the KEF KF92 weighs 20.05kg / 44.1lbs. This makes the PB 5000 R Evolution 248% heavier than the KF92.
Here is a comparison of how PB 5000 R Evolution and KF92's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
15 inches
vs
9 inches
|
Larger woofer |
| Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
11 Hz
vs
13 Hz
|
Generates deeper bass |
 High Frequency Response |
200 Hz
vs
180 Hz
|
Generates higher frequency |
 Height |
353mm
vs
595mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1198cm2
vs
3802cm2
|
Takes less floor space |
 Price per pair* |
2000USD
vs
2600USD
|
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.
SVS PB 5000 R Evolution needs about 217% more floor area. SVS PB 5000 R Evolution stands 368mm further into the room. SVS PB 5000 R Evolution is 242mm taller.
| General |
SVS PB 5000 R Evolution |
KEF KF92 |
| Brand |
SVS |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
13-180 Hz |
11-200 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
2000-watt RMS |
1000-watt RMS |
| Watts Peak (Max) |
5000-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
2 |
| Woofer Size |
15" |
9" |
| Woofer Composition |
|
Hybrid aluminum |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
595.3mm (23.4") |
353.0mm (13.9") |
| Width |
520.7mm (20.5") |
331.0mm (13") |
| Depth |
730.3mm (28.8") |
362.0mm (14.3") |
| Weight |
69.81kg (153.6lbs) |
20.05kg (44.1lbs) |
| Enclosure |
|
Acoustic Suspension |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
2 Years |
| Labor Warranty |
5 Years |
2 Years |
A ported subwoofer against a sealed one. That is the most consequential line on this page: it decides how the bass rolls off, how it behaves in a small room, and how much output you get for the size of the box.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (13Hz vs 11Hz). |
| Amplifier power | A | SVS PB 5000 R Evolution has the bigger amplifier - 2000W against 1000W RMS, about 3dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | SVS PB 5000 R Evolution moves more air: 15" against 2 x 9" is 1.39x the cone area, not the 1.18x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | depends | SVS PB 5000 R Evolution is ported - a ported box gives more output low down for its size, at the cost of a steeper roll-off below tuning; KEF KF92 is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room. Neither is better in the abstract; ported tends to suit films and sealed tends to suit music, and both generalisations have exceptions. |
| Cabinet size | depends | KEF KF92 is about 81% 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 | SVS PB 5000 R Evolution carries 5 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 | KEF KF92 costs less - $2,000 against $2,600, about 23% less. |
A SVS PB 5000 R Evolution B KEF KF92
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?
SVS PB 5000 R Evolution leads across most of the measured areas for a modest premium, so it is the easier pick if the budget stretches. KEF KF92 is the one to take if it does not. Films or music? If this is mainly a home cinema, SVS PB 5000 R Evolution will hit harder for the money; if it is mainly for music in a normal-sized room, KEF KF92 is usually the easier one to make sound right. If placement is the constraint - a corner, behind a sofa, under a desk - KEF KF92 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.