In this review, we will be comparing Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer and SPL-120, two Powered Subwoofer speakers from Aperion 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 Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer and Klipsch SPL-120 first before getting into our more detailed comparison.
The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.
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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.Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer and Klipsch SPL-120 have a totally different setup: the Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer features 2 x 12-inch drivers whereas the SPL-120 features 1 x 12-inch drivers.
Frequency Response
Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer has a frequency range of 19-180 Hz whereas SPL-120 has a frequency range of 24-125 Hz. With a minimum frequency of 19Hz, the Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer can go significantly deeper on the low side and provide stronger bass compared to the SPL-120's min frequency of 24Hz.
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
Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer
High Frequency
Subwoofer Speakers
Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer
Cabinet Type
Both Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer and Klipsch SPL-120 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.
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer's and Klipsch SPL-120's external dimensions. Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer has external dimensions of 899.2 x 449.6 x 248.9mm (35.4 x 17.7 x 9.8inch) whereas Klipsch SPL-120 has external dimensions of 450.0 x 375.0 x 540.0mm (17-11/16 x 14-3/4 x 21-1/4inch).
Klipsch SPL-120 is 74.6mm narrower and 449.2mm shorter than Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer but it is also 291.1mm deeper.
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 Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer is approximately 1119.1cm2 / 173.5inch2 and base area of the Klipsch SPL-120 is approximately 2025.0cm2 / 313.9inch2. The Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer requires 45% less surface area than the SPL-120 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 Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer weighs 41.10kg / 90.4lbs and the Klipsch SPL-120 weighs 20.45kg / 45lbs. This makes the Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer 101% heavier than the SPL-120.
Here is a comparison of how Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer and SPL-120's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer
 Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
19 Hz
vs
24 Hz
|
Generates deeper bass |
 High Frequency Response |
180k Hz
vs
125k Hz
|
Generates higher frequency |
 Base Surface Area |
1119cm2
vs
2025cm2
|
Takes less floor space |
 Height |
450mm
vs
899mm
|
Easier to fit in smaller spaces |
 Price per pair* |
499USD
vs
2999USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Aperion Bravus III B212S Dual 12" Slim Cinema Powered Subwoofer |
Klipsch SPL-120 |
| Brand |
Aperion |
Klipsch |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
750 watts |
300 watts |
| Impedance |
4 ohms |
n/a |
| Frequency Response |
19-180 Hz |
24-125 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
750-watt RMS |
300-watt RMS |
| Watts Peak (Max) |
n/a |
600-watt RMS |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
|
Cerametallic |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
40-160 Hz |
n/a |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
899.2mm (35.4") |
450.0mm (17.7") |
| Width |
449.6mm (17.7") |
375.0mm (14.8") |
| Depth |
248.9mm (9.8") |
540.0mm (21.3") |
| Weight |
41.10kg (90.4lbs) |
20.45kg (45lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 Years |