In this review, we will be comparing SUB8 and C 912, two Powered Subwoofer speakers from Kanto 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 Kanto SUB8 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 Kanto SUB8 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.Both Kanto SUB8and Jamo C 912 have a single woofer setup however the Kanto SUB8's woofer is 8-inch whereas the Jamo C 912 features a 12-inch woofer.
Frequency Response
SUB8 has a frequency range of 35-175 Hz whereas C 912 has a frequency range of 29-125 Hz. With a minimum frequency of 29Hz, the C 912 can go significantly deeper on the low side and provide stronger bass compared to the SUB8's min frequency of 35Hz.
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 Kanto SUB8 has a Acoustic Suspension type cabinet. 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. 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 Kanto SUB8's and Jamo C 912's external dimensions. Kanto SUB8 has external dimensions of 301.0 x 281.0 x 329.0mm ( 11-13/16 x 11-1/16 x 12-15/16inch) 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) .
Jamo C 912 is clearly the larger of the two speakers. Its body is 77mm wider, 160mm taller and 178mm deeper than Kanto SUB8.
Below you can see the front view size comparison of Kanto SUB8 and Jamo C 912 in scale.
Comparison image of Kanto SUB8 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 Kanto SUB8 is approximately 924.5cm2 / 143.3inch2 and base area of the Jamo C 912 is approximately 1815.1cm2 / 281.3inch2. The SUB8 requires 49% less surface area than the C 912 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 Kanto SUB8 weighs 7.82kg / 17.2lbs and the Jamo C 912 weighs 18.98kg / 41.8lbs. This makes the C 912 143% heavier than the SUB8.
Here is a comparison of how SUB8 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 Kanto SUB8?
Here are the items that are included inside the box of SUB8:
Powered subwoofer6-feet AC power cord9.75-feet mono-RCA cableUser Manual
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
 High Frequency Response |
175k Hz
vs
125k Hz
|
Generates higher frequency |
 Height |
301mm
vs
461mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
924cm2 (281x329mm)
vs
1815cm2 (358x507mm)
|
Takes less floor space |
 Woofer Size |
12 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
29 Hz
vs
35 Hz
|
Generates deeper bass |
 Price per pair* |
229USD
vs
300USD
|
costs less (*prices may change depending on the seller, location and time) |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| General |
Kanto SUB8 |
Jamo C 912 |
| Brand |
Kanto |
Jamo |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
125 watts |
200 watts |
| Frequency Response |
35-175 Hz |
29-125 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
125-watt RMS |
200-watt RMS |
| Watts Peak (Max) |
250-watt RMS |
400-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
12" |
| Woofer Composition |
Paper |
IMG |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
301.0mm (11.9") |
461.0mm (18.1") |
| Width |
281.0mm (11.1") |
358.0mm (14.1") |
| Depth |
329.0mm (13") |
507.0mm (20") |
| Weight |
7.82kg (17.2lbs) |
18.98kg (41.8lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |