In this review, we will be comparing Elite ES8 and SW-15, two Powered Subwoofer speakers from Polk Audio and Wharfedale. 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 Wharfedale SW-15 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the Polk Signature Elite ES8 and Wharfedale SW-15 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.Both Polk Signature Elite ES8and Wharfedale SW-15 have a single woofer setup however the Polk Signature Elite ES8's woofer is 8-inch whereas the Wharfedale SW-15 features a 15-inch woofer.
Frequency Response
Elite ES8 has a frequency range of 32-180 Hz whereas SW-15 has a frequency range of 30-120 Hz. With a minimum frequency of 30Hz, the SW-15 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 Wharfedale SW-15 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
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 Polk Signature Elite ES8's and Wharfedale SW-15'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 Wharfedale SW-15 has external dimensions of 570.0 x 493.0 x 615.0mm ( 22-7/16inch x 19-3/8inch x 24-3/16inch ) .
Wharfedale SW-15 is clearly the larger of the two speakers. Its body is 167mm wider, 185mm taller and 178mm deeper than Polk Signature Elite ES8.
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 Wharfedale SW-15 is approximately 3032.0cm2 / 470.0inch2. The Elite ES8 requires 53% less surface area than the SW-15 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 Wharfedale SW-15 weighs 31.57kg / 69.5lbs. This makes the SW-15 78% heavier than the Elite ES8.
Here is a comparison of how Elite ES8 and SW-15'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 subwooferGrille6-feet AC power cordOwners ManualOnline Product Registration sheet
What's in the Box of Wharfedale SW-15?
Here are the items that come with the SW-15:
Powered subwooferGrille6.5-feet AC power cordUser-feets Manual
 High Frequency Response |
180k Hz
vs
120k Hz
|
Generates higher frequency |
 Height |
385mm
vs
570mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1424cm2 (326x437mm)
vs
3032cm2 (493x615mm)
|
Takes less floor space |
 Price per pair* |
449USD
vs
1199USD
|
costs less (*prices may change depending on the seller, location and time) |
 Woofer Size |
15 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
30 Hz
vs
32 Hz
|
Generates deeper bass |
| General |
Polk Signature Elite ES8 |
Wharfedale SW-15 |
| Brand |
Polk Audio |
Wharfedale |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
100 watts |
400 watts |
| Frequency Response |
32-180 Hz |
30-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
100-watt RMS |
400-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
15" |
| Woofer Composition |
Mineral-filled polypropylene |
Paper |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
385.0mm (15.2") |
570.0mm (22.4") |
| Width |
326.0mm (12.8") |
493.0mm (19.4") |
| Depth |
437.0mm (17.2") |
615.0mm (24.2") |
| Weight |
17.73kg (39lbs) |
31.57kg (69.5lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
3 Years |
| Labor Warranty |
3 Years |
3 Years |