In this review, we will be comparing Elite ES10 and KC62, two Powered Subwoofer speakers from Polk Audio 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 Polk Signature Elite ES10 and KEF KC62 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 ES10 and KEF KC62 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.Polk Signature Elite ES10 and KEF KC62 have a totally different setup: the Polk Signature Elite ES10 features 1 x 10-inch drivers whereas the KC62 features 2 x 6.5-inch drivers.
Frequency Response
Elite ES10 has a frequency range of 28-250 Hz whereas KC62 has a frequency range of 11-200 Hz. With a minimum frequency of 11Hz, the KC62 can go significantly deeper on the low side and provide stronger bass compared to the Elite ES10's min frequency of 28Hz.
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 ES10
High Frequency
Subwoofer Speakers
Polk Signature Elite ES10
Cabinet Type
The Polk Signature Elite ES10 has a Bass Reflex type cabinet. 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. On the other hand the KEF KC62 have Acoustic Suspension type enclosure. Acoustic Suspension aka Sealed type subwoofers have enclosures that are sealed hence no ports or holes exists on the cabinet. Sealed designs helps to provide more accurate and tight bass responses compared to ported designs.
Polk Signature Elite ES10 double 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 ES10's and KEF KC62's external dimensions. Polk Signature Elite ES10 has external dimensions of 439.0 x 332.0 x 469.0mm ( 17-1/4inch x 13-1/16inch x 18-7/16inch ) whereas KEF KC62 has external dimensions of 245.0 x 258.0 x 281.0mm ( 9-5/8inch x 10-1/8inch x 11-1/16inch ) .
Polk Signature Elite ES10 is clearly the larger of the two speakers. Its body is 74mm wider, 194mm taller and 188mm deeper than KEF KC62.
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 ES10 is approximately 1557.1cm2 / 241.4inch2 and base area of the KEF KC62 is approximately 725.0cm2 / 112.4inch2. The Elite ES10 requires 115% more surface area than the KC62 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 ES10 weighs 17.73kg / 39lbs and the KEF KC62 weighs 14.05kg / 30.9lbs. This makes the Elite ES10 26% heavier than the KC62.
Here is a comparison of how Elite ES10 and KC62's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
Polk Signature Elite ES10
What's in the Box of Polk Signature Elite ES10?
Here are the items that are included inside the box of Elite ES10:
Powered subwooferGrille6-feet AC power cordOwners ManualOnline Product Registration sheet
What's in the Box of KEF KC62?
Here are the items that come with the KC62:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
 Woofer Size |
10 inches
vs
6.5 inches
|
Larger woofer |
 High Frequency Response |
250k Hz
vs
200k Hz
|
Generates higher frequency |
 Price per pair* |
649USD
vs
1500USD
|
costs less (*prices may change depending on the seller, location and time) |
| Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
11 Hz
vs
28 Hz
|
Generates deeper bass |
 Height |
245mm
vs
439mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
725cm2 (258x281mm)
vs
1557cm2 (332x469mm)
|
Takes less floor space |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| General |
Polk Signature Elite ES10 |
KEF KC62 |
| Brand |
Polk Audio |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
1000 watts |
| Frequency Response |
28-250 Hz |
11-200 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
1000-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
2 |
| Woofer Size |
10" |
6.5" |
| Woofer Composition |
Mineral-filled polypropylene |
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
side |
Physical Specs |
|
|
| Height |
439.0mm (17.3") |
245.0mm (9.6") |
| Width |
332.0mm (13.1") |
258.0mm (10.2") |
| Depth |
469.0mm (18.5") |
281.0mm (11.1") |
| Weight |
17.73kg (39lbs) |
14.05kg (30.9lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
2 Years |
| Labor Warranty |
3 Years |
2 Years |