In this review, we will be comparing LX-10SUB MKII and R-121SW, two Powered Subwoofer speakers from Mission 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 Mission LX-10SUB MKII 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 Mission LX-10SUB MKII 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 Mission LX-10SUB MKIIand Klipsch R-121SW have a single woofer setup however the Mission LX-10SUB MKII's woofer is 10-inch whereas the Klipsch R-121SW features a 12-inch woofer.
Frequency Response
LX-10SUB MKII has a frequency range of 40-200 Hz whereas R-121SW has a frequency range of 28-120 Hz. With a minimum frequency of 28Hz, the R-121SW can go significantly deeper on the low side and provide stronger bass compared to the LX-10SUB MKII's min frequency of 40Hz.
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 Mission LX-10SUB MKII 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 Mission LX-10SUB MKII's and Klipsch R-121SW's external dimensions. Mission LX-10SUB MKII has external dimensions of 447.0 x 312.0 x 407.0mm ( 17-5/8 x 12-5/16 x 16inch) 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 ) .
Mission LX-10SUB MKII is 95mm narrower and 125mm less deeper than Klipsch R-121SW but it is also 24mm 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 Mission LX-10SUB MKII is approximately 1269.8cm2 / 196.8inch2 and base area of the Klipsch R-121SW is approximately 2165.2cm2 / 335.6inch2. The LX-10SUB MKII requires 41% less surface area than the R-121SW 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 Mission LX-10SUB MKII weighs 16.00kg / 35.2lbs and the Klipsch R-121SW weighs 16.00kg / 35.2lbs.
Here is a comparison of how LX-10SUB MKII and R-121SW's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 High Frequency Response |
200k Hz
vs
120k Hz
|
Generates higher frequency |
 Base Surface Area |
1269cm2
vs
2165cm2
|
Takes less floor space |
 Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
| Low Frequency Response |
28 Hz
vs
40 Hz
|
Generates deeper bass |
 Height |
423mm
vs
447mm
|
Easier to fit in smaller spaces |
| General |
Mission LX-10SUB MKII |
Klipsch Reference R-121SW |
| Brand |
Mission |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
200 watts |
| Frequency Response |
40-200 Hz |
28-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
350-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
12" |
| Woofer Composition |
Paper |
Spun-Copper TCP |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
30 - 150Hz |
n/a |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
447.0mm (17.6") |
423.0mm (16.7") |
| Width |
312.0mm (12.3") |
407.0mm (16") |
| Depth |
407.0mm (16") |
532.0mm (20.9") |
| Weight |
16.00kg (35.2lbs) |
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 |