In this review, we will be comparing Windsor 12 and Windsor 10, two Powered Subwoofer speakers by KLH. 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 KLH Windsor 12 and KLH Windsor 10 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.Both KLH Windsor 12and KLH Windsor 10 have a single woofer setup however the KLH Windsor 12's woofer is 12-inch whereas the KLH Windsor 10 features a 10-inch woofer.
Frequency Response
Windsor 12 has a frequency range of 30-160 Hz whereas Windsor 10 has a frequency range of 32-150 Hz. With a minimum frequency of 30Hz, the Windsor 12 can go slightly deeper then the Windsor 10's min frequency of 32Hz.
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 KLH Windsor 12 and KLH Windsor 10 have Bass Reflex type cabinets. 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 KLH Windsor 12's and KLH Windsor 10's external dimensions. KLH Windsor 12 has external dimensions of 455.0 x 401.0 x 521.0mm (17-7/8 x 15-3/4 x 20-1/2inch) whereas KLH Windsor 10 has external dimensions of 397.0 x 337.0 x 450.0mm (15-5/8 x 13-1/4 x 17-11/16inch).
KLH Windsor 12 is clearly the larger of the two speakers. Its body is 64mm wider, 58mm taller and 71mm deeper than KLH Windsor 10.
Below you can see the front view size comparison of KLH Windsor 12 and KLH Windsor 10 in scale.
Comparison image of KLH Windsor 12 and KLH Windsor 10 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 KLH Windsor 12 is approximately 2089.2cm2 / 323.8inch2 and base area of the KLH Windsor 10 is approximately 1516.5cm2 / 235.1inch2. The Windsor 12 requires 38% more surface area than the Windsor 10 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 KLH Windsor 12 weighs 20.19kg / 44.4lbs and the KLH Windsor 10 weighs 14.78kg / 32.5lbs. This makes the Windsor 12 37% heavier than the Windsor 10.
Here is a comparison of how Windsor 12 and Windsor 10's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of KLH Windsor 12?
Here are the items that are included inside the box of Windsor 12:
- Powered subwoofer
- Grille
- 9-feet AC power cord
- Manual
What's in the Box of KLH Windsor 10?
Here are the items that come with the Windsor 10:
- Powered subwoofer
- Grille
- 9-feet AC power cord
- Manual
 Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
| Low Frequency Response |
30 Hz
vs
32 Hz
|
Generates deeper bass |
 High Frequency Response |
160 Hz
vs
150 Hz
|
Generates higher frequency |
 Height |
397mm
vs
455mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1516cm2
vs
2089cm2
|
Takes less floor space |
 Price per pair* |
600USD
vs
800USD
|
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.
KLH Windsor 12 needs about 38% more floor area. KLH Windsor 12 stands 71mm further into the room. KLH Windsor 12 is 58mm taller.
| General |
KLH Windsor 12 |
KLH Windsor 10 |
| Brand |
KLH |
KLH |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
150 watts |
| Frequency Response |
30-160 Hz |
32-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
150-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
10" |
| Woofer Composition |
Composite |
Composite |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
455.0mm (17.9") |
397.0mm (15.6") |
| Width |
401.0mm (15.8") |
337.0mm (13.3") |
| Depth |
521.0mm (20.5") |
450.0mm (17.7") |
| Weight |
20.19kg (44.4lbs) |
14.78kg (32.5lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
Siblings in KLH's Windsor range - same design thinking, different size. It comes down to your room and your budget.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (30Hz vs 32Hz). |
| Amplifier power | A | KLH Windsor 12 has the bigger amplifier - 200W against 150W RMS, about 1.2dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | KLH Windsor 12 moves more air: 12" against 10" is 1.44x the cone area, not the 1.2x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are ported designs, so they roll off in much the same way. |
| Cabinet size | depends | KLH Windsor 10 is about 37% 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 | KLH Windsor 10 costs less - $600 against $800, about 25% less. |
A KLH Windsor 12 B KLH Windsor 10
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?
The usual trade-off: KLH Windsor 12 measures better, KLH Windsor 10 costs about 25% less. In a normal room, placement will make a bigger difference than the gap between these two. If placement is the constraint - a corner, behind a sofa, under a desk - KLH Windsor 10 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.