In this review, we will be comparing Elite ES8 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 ES8 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.
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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.Both Polk Signature Elite ES8and Klipsch R-101SW have a single woofer setup however the Polk Signature Elite ES8's woofer is 8-inch whereas the Klipsch R-101SW features a 10-inch woofer.
Frequency Response
Elite ES8 has a frequency range of 32-180 Hz whereas R-101SW has a frequency range of 29.5-160 Hz. With a minimum frequency of 30Hz, the R-101SW can go slightly deeper then the Elite ES8'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 Polk Signature Elite ES8 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 ES8 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 ES8's and Klipsch R-101SW's external dimensions. Polk Signature Elite ES8 has external dimensions of 385.0 x 326.0 x 437.0mm (15-1/8inch x 12-13/16inch x 17-3/16inch) 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).
Polk Signature Elite ES8 is 32mm narrower and 92mm less deeper than Klipsch R-101SW but it is also 15mm 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 ES8 is approximately 1424.6cm2 / 220.8inch2 and base area of the Klipsch R-101SW is approximately 1893.8cm2 / 293.5inch2. The Elite ES8 requires 25% less surface area than the R-101SW which gives it a small advantage 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 ES8 weighs 17.73kg / 39lbs and the Klipsch R-101SW weighs 13.91kg / 30.6lbs. This makes the Elite ES8 27% heavier than the R-101SW.
Here is a comparison of how Elite ES8 and R-101SW's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Polk Signature Elite ES8?
Here are the items that are included inside the box of Elite ES8:
- 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
 High Frequency Response |
180k Hz
vs
160k Hz
|
Generates higher frequency |
 Base Surface Area |
1424cm2
vs
1893cm2
|
Takes less floor space |
 Price per pair* |
449USD
vs
499USD
|
costs less (*prices may change depending on the seller, location and time) |
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
30 Hz
vs
32 Hz
|
Generates deeper bass |
 Height |
370mm
vs
385mm
|
Easier to fit in smaller spaces |
| General |
Polk Signature Elite ES8 |
Klipsch Reference R-101SW |
| Brand |
Polk Audio |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
100 watts |
150 watts |
| Frequency Response |
32-180 Hz |
29.5-160 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
100-watt RMS |
150-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
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 |
385.0mm (15.2") |
370.0mm (14.6") |
| Width |
326.0mm (12.8") |
358.0mm (14.1") |
| Depth |
437.0mm (17.2") |
529.0mm (20.8") |
| Weight |
17.73kg (39lbs) |
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 |