In this review, we will be comparing R-121SW and Silver W-12, two Powered Subwoofer speakers from Klipsch and Monitor Audio . 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 R-121SW and Monitor Audio Silver W-12 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 R-121SW and Monitor Audio Silver W-12 compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Klipsch R-121SWand Monitor Audio Silver W-12 have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
R-121SW has a frequency range of 28-120 Hz whereas Silver W-12 has a frequency range of 20-120 Hz. With a minimum frequency of 20Hz, the Silver W-12 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
Monitor Audio Silver W-12
High Frequency
Subwoofer Speakers
Monitor Audio Silver W-12
Cabinet Type
The Klipsch R-121SW 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 Monitor Audio Silver W-12 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.
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 R-121SW's and Monitor Audio Silver W-12's external dimensions. Klipsch R-121SW has external dimensions of 423.0 x 407.0 x 532.0mm ( 16-5/8inch x 16inch x 20-15/16inch ) whereas Monitor Audio Silver W-12 has external dimensions of 355.0 x 342.0 x 445.0mm ( 13-15/16 x 13-7/16 x 17-1/2inch) .
Klipsch R-121SW is clearly the larger of the two speakers. Its body is 65mm wider, 68mm taller and 87mm deeper than Monitor Audio Silver W-12.
Below you can see the front view size comparison of Klipsch R-121SW and Monitor Audio Silver W-12 in scale.
Comparison image of Klipsch R-121SW and Monitor Audio Silver W-12 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 R-121SW is approximately 2165.2cm2 / 335.6inch2 and base area of the Monitor Audio Silver W-12 is approximately 1521.9cm2 / 235.9inch2. The R-121SW requires 42% more surface area than the Silver W-12 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 R-121SW weighs 16.00kg / 35.2lbs and the Monitor Audio Silver W-12 weighs 20.14kg / 44.3lbs. This makes the Silver W-12 26% heavier than the R-121SW.
Here is a comparison of how R-121SW and Silver W-12's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
Monitor Audio Silver W-12
What's in the Box of Klipsch R-121SW?
Here are the items that are included inside the box of R-121SW:
Powered subwooferGrille6.5-feet AC power cordUser ManualImportant Safety InstructionsWarranty Information
What's in the Box of Monitor Audio Silver W-12?
Here are the items that come with the Silver W-12:
Powered sub6-feet AC power cordGrilleAuto setup mic (w/ attached 19.5-feet cable)10.75-feet Mono minijack cable4 FeetOwners ManualImportant Safety Instructions
 Price per pair* |
599USD
vs
2100USD
|
costs less (*prices may change depending on the seller, location and time) |
 Low Frequency Response |
20 Hz
vs
28 Hz
|
Generates deeper bass |
 Height |
355mm
vs
423mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1521cm2
vs
2165cm2
|
Takes less floor space |
| General |
Klipsch Reference R-121SW |
Monitor Audio Silver W-12 |
| Brand |
Klipsch |
Monitor Audio |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
500 watts |
| Frequency Response |
28-120 Hz |
20-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
Spun-Copper TCP |
C-CAM |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
423.0mm (16.7") |
355.0mm (14") |
| Width |
407.0mm (16") |
342.0mm (13.5") |
| Depth |
532.0mm (20.9") |
445.0mm (17.5") |
| Weight |
16.00kg (35.2lbs) |
20.14kg (44.3lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |