In this review, we will be comparing R15s and R-121SW, two Powered Subwoofer speakers from Perlisten 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 Perlisten R15s and Klipsch R-121SW 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.Perlisten R15s and Klipsch R-121SW have a totally different setup: the Perlisten R15s features x -inch drivers whereas the R-121SW features 1 x 12-inch drivers.
Frequency Response
R15s has a frequency range of 20-388 Hz whereas R-121SW has a frequency range of 28-120 Hz. With a minimum frequency of 20Hz, the R15s can go significantly deeper on the low side and provide stronger bass compared to the R-121SW'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
High Frequency
Subwoofer Speakers
Cabinet Type
Both Perlisten R15s and Klipsch R-121SW 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.
Klipsch R-121SW 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 Perlisten R15s's and Klipsch R-121SW's external dimensions. Perlisten R15s has external dimensions of () whereas Klipsch R-121SW has external dimensions of 423.0 x 407.0 x 532.0mm (16-5/8inch x 16inch x 20-15/16inch).
Klipsch R-121SW is clearly the larger of the two speakers. Its body is 407mm wider, 423mm taller and 532mm deeper than Perlisten R15s.
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 Perlisten R15s weighs 78.10kg / 171.8lbs and the Klipsch R-121SW weighs 16.00kg / 35.2lbs. This makes the R15s 388% heavier than the R-121SW.
Here is a comparison of how R15s and R-121SW's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
20 Hz
vs
28 Hz
|
Generates deeper bass |
 High Frequency Response |
388k Hz
vs
120k Hz
|
Generates higher frequency |
 Height |
0mm
vs
423mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
0cm2
vs
2165cm2
|
Takes less floor space |
| Woofer Size |
12 inches
vs
inches
|
Larger woofer |
 Price per pair* |
599USD
vs
4495USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Perlisten R15s |
Klipsch Reference R-121SW |
| Brand |
Perlisten |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Sensitivity |
92 dB |
n/a |
| Frequency Response |
20-388 Hz |
28-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
n/a |
200-watt RMS |
Drivers |
|
|
| Woofer Quantity |
|
1 |
| Woofer Size |
" |
12" |
| Woofer Composition |
|
Spun-Copper TCP |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
mm (0") |
423.0mm (16.7") |
| Width |
mm (0") |
407.0mm (16") |
| Depth |
mm (0") |
532.0mm (20.9") |
| Weight |
78.10kg (171.8lbs) |
16.00kg (35.2lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 Years |