In this review, we will be comparing RP-1000SW and R-121SW, two Powered Subwoofer speakers by 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 Klipsch RP-1000SW and Klipsch R-121SW first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the Klipsch RP-1000SW and Klipsch R-121SW 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 Klipsch RP-1000SWand Klipsch R-121SW have a single woofer setup however the Klipsch RP-1000SW's woofer is 10-inch whereas the Klipsch R-121SW features a 12-inch woofer.
Frequency Response
RP-1000SW has a frequency range of 19-131 Hz whereas R-121SW has a frequency range of 28-120 Hz. With a minimum frequency of 19Hz, the RP-1000SW 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 Klipsch RP-1000SW 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
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 Klipsch RP-1000SW's and Klipsch R-121SW's external dimensions. Klipsch RP-1000SW has external dimensions of 423.0 x 381.0 x 635.0mm ( 16-5/8inch x 15inch x 25inch ) 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 ) .
Below you can see the front view size comparison of Klipsch RP-1000SW and Klipsch R-121SW in scale.
Comparison image of Klipsch RP-1000SW and Klipsch R-121SW Size and External Dimensions
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 Klipsch RP-1000SW is approximately 2419.4cm2 / 375.0inch2 and base area of the Klipsch R-121SW is approximately 2165.2cm2 / 335.6inch2. The RP-1000SW requires 12% more surface area than the R-121SW 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 Klipsch RP-1000SW weighs 25.77kg / 56.7lbs and the Klipsch R-121SW weighs 16.00kg / 35.2lbs. This makes the RP-1000SW 61% heavier than the R-121SW.
Here is a comparison of how RP-1000SW and R-121SW's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
19 Hz
vs
28 Hz
|
Generates deeper bass |
 High Frequency Response |
131k Hz
vs
120k Hz
|
Generates higher frequency |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
 Base Surface Area |
2165cm2 (407x532mm)
vs
2419cm2 (381x635mm)
|
Takes less floor space |
 Price per pair* |
599USD
vs
749USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Klipsch Reference Premiere RP-1000SW |
Klipsch Reference R-121SW |
| Brand |
Klipsch |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
200 watts |
| Frequency Response |
19-131 Hz |
28-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
600-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
12" |
| Woofer Composition |
Cerametallic |
Spun-Copper TCP |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
423.0mm (16.7") |
423.0mm (16.7") |
| Width |
381.0mm (15") |
407.0mm (16") |
| Depth |
635.0mm (25") |
532.0mm (20.9") |
| Weight |
25.77kg (56.7lbs) |
16.00kg (35.2lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF with Vinyl |
n/a |
| Available Colors |
Ebony |
n/a |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 years |
2 Years |
| Labor Warranty |
5 years |
2 Years |