In this review, we will be comparing R-120SW and C 912, two Powered Subwoofer speakers from Klipsch and Jamo. 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-120SW and Jamo C 912 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-120SW and Jamo C 912 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.Klipsch R-120SWand Jamo C 912 have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
R-120SW has a frequency range of 29-120 Hz whereas C 912 has a frequency range of 29-125 Hz.
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
The Klipsch R-120SW has a Bass reflex type cabinet. On the other hand the Jamo C 912 have Bass Reflex type enclosure. 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.
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-120SW's and Jamo C 912's external dimensions. Klipsch R-120SW has external dimensions of 423.0 x 358.0 x 532.0mm ( 16-5/8 x 14-1/16 x 20-15/16inch) whereas Jamo C 912 has external dimensions of 461.0 x 358.0 x 507.0mm ( 18-1/8 x 14-1/16 x 19-15/16inch) .
Below you can see the front view size comparison of Klipsch R-120SW and Jamo C 912 in scale.
Comparison image of Klipsch R-120SW and Jamo C 912 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-120SW is approximately 1904.6cm2 / 295.2inch2 and base area of the Jamo C 912 is approximately 1815.1cm2 / 281.3inch2. The R-120SW requires 5% more surface area than the C 912 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-120SW weighs 14.09kg / 31lbs and the Jamo C 912 weighs 18.98kg / 41.8lbs. This makes the C 912 35% heavier than the R-120SW.
Here is a comparison of how R-120SW and C 912's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Klipsch R-120SW?
Here are the items that are included inside the box of R-120SW:
Powered subGrille (installed)6.5-feet AC power cordUser ManualImportant Safety InstructionsWarranty Information
What's in the Box of Jamo C 912?
Here are the items that come with the C 912:
Powered subwooferGrille6-feet AC power cordUser ManualImportant Safety InstructionsWarranty Information
 Height |
423mm
vs
461mm
|
Easier to fit in smaller spaces |
 High Frequency Response |
125k Hz
vs
120k Hz
|
Generates higher frequency |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 Base Surface Area |
1815cm2
vs
1904cm2
|
Takes less floor space |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| General |
Klipsch R-120SW |
Jamo C 912 |
| Brand |
Klipsch |
Jamo |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
200 watts |
| Frequency Response |
29-120 Hz |
29-125 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
400-watt RMS |
400-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
Copper-spun IMG |
IMG |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
rear |
front |
Physical Specs |
|
|
| Height |
423.0mm (16.7") |
461.0mm (18.1") |
| Width |
358.0mm (14.1") |
358.0mm (14.1") |
| Depth |
532.0mm (20.9") |
507.0mm (20") |
| Weight |
14.09kg (31lbs) |
18.98kg (41.8lbs) |
| Enclosure |
Bass reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |