In this review, we will be comparing Elite ES12 and R-101SW, two Powered Subwoofer speakers from Polk Audio and Klipsch. 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 Polk Signature Elite ES12 and Klipsch R-101SW 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 Polk Signature Elite ES12and Klipsch R-101SW have a single woofer setup however the Polk Signature Elite ES12's woofer is 12-inch whereas the Klipsch R-101SW features a 10-inch woofer.
Frequency Response
Elite ES12 has a frequency range of 22-250 Hz whereas R-101SW has a frequency range of 29.5-160 Hz. With a minimum frequency of 22Hz, the Elite ES12 can go significantly deeper on the low side and provide stronger bass compared to the R-101SW's min frequency of 30Hz.
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
Polk Signature Elite ES12
High Frequency
Subwoofer Speakers
Polk Signature Elite ES12
Cabinet Type
Both Polk Signature Elite ES12 and Klipsch R-101SW 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.
Polk Signature Elite ES12 double Port
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 Polk Signature Elite ES12's and Klipsch R-101SW's external dimensions. Polk Signature Elite ES12 has external dimensions of 231.0 x 364.0 x 532.0mm (9-1/16inch x 14-5/16inch x 20-15/16inch) whereas Klipsch R-101SW has external dimensions of 370.0 x 358.0 x 529.0mm (14-9/16inch x 14-1/16inch x 20-13/16inch).
Klipsch R-101SW is 6mm narrower and 3mm less deeper than Polk Signature Elite ES12 but it is also 139mm taller.
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 Polk Signature Elite ES12 is approximately 1936.5cm2 / 300.2inch2 and base area of the Klipsch R-101SW is approximately 1893.8cm2 / 293.5inch2. The Elite ES12 requires 2% more surface area than the R-101SW 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 Polk Signature Elite ES12 weighs 21.64kg / 47.6lbs and the Klipsch R-101SW weighs 13.91kg / 30.6lbs. This makes the Elite ES12 56% heavier than the R-101SW.
Here is a comparison of how Elite ES12 and R-101SW's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
Polk Signature Elite ES12
What's in the Box of Polk Signature Elite ES12?
Here are the items that are included inside the box of Elite ES12:
- Powered subwoofer
- Grille
- 6-feet AC power cord
- Owners Manual
- Online Product Registration sheet
What's in the Box of Klipsch R-101SW?
Here are the items that come with the R-101SW:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- User Manual
- Important Safety Instructions
- Warranty Information
 Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
| Low Frequency Response |
22 Hz
vs
30 Hz
|
Generates deeper bass |
 High Frequency Response |
250 Hz
vs
160 Hz
|
Generates higher frequency |
 Height |
231mm
vs
370mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1893cm2
vs
1936cm2
|
Takes less floor space |
 Price per pair* |
499USD
vs
849USD
|
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.
Near-identical footprints. Klipsch R-101SW is 139mm taller.
| General |
Polk Signature Elite ES12 |
Klipsch Reference R-101SW |
| Brand |
Polk Audio |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
150 watts |
| Frequency Response |
22-250 Hz |
29.5-160 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
150-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
10" |
| Woofer Composition |
Mineral-filled polypropylene |
Spun-Copper TCP |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
231.0mm (9.1") |
370.0mm (14.6") |
| Width |
364.0mm (14.3") |
358.0mm (14.1") |
| Depth |
532.0mm (20.9") |
529.0mm (20.8") |
| Weight |
21.64kg (47.6lbs) |
13.91kg (30.6lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
2 Years |
| Labor Warranty |
3 Years |
2 Years |
Different price classes - Polk Signature Elite ES12 costs roughly 1.7x what Klipsch R-101SW does. Before paying it, read the note below about two smaller subwoofers.
| Area | Better | Why |
|---|
| Bass depth | A | Polk Signature Elite ES12 goes deeper - 22Hz against 30Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | A | Polk Signature Elite ES12 has the bigger amplifier - 300W against 150W RMS, about 3dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | Polk Signature Elite ES12 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 | Polk Signature Elite ES12 is about 36% 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 | Polk Signature Elite ES12 carries 3 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 | Klipsch R-101SW costs less - $499 against $849, about 41% less. |
A Polk Signature Elite ES12 B Klipsch R-101SW
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: Polk Signature Elite ES12 measures better, Klipsch R-101SW costs about 41% less. In a normal room, placement will make a bigger difference than the gap between these two. Two small subwoofers beat one big one in most rooms - a pair evens out the room modes in a way no single box can, whatever its specs. At $499 each, two Klipsch R-101SW cost about $998 against $849 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - Polk Signature Elite ES12 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.