In this review, we will be comparing Revel B1 and A120P, two Powered Subwoofer speakers from Revel and JBL. 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 Revel B1 and JBL Stage A120P first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the Revel B1 and JBL Stage A120P 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.Revel B1and JBL Stage A120P have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
Revel B1 has a frequency range of 36-150 Hz whereas A120P has a frequency range of 32-150 Hz. With a minimum frequency of 32Hz, the A120P can go slightly deeper then the Revel B1's min frequency of 36Hz.
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 Revel B1 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 JBL Stage A120P have Bass reflex type enclosure.
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 Revel B1's and JBL Stage A120P's external dimensions. Revel B1 has external dimensions of 451.0 x 402.0 x 391.0mm ( 17-3/4 x 15-13/16 x 15-3/8inch) whereas JBL Stage A120P has external dimensions of 415.0 x 393.0 x 475.0mm ( 16-5/16 x 15-7/16 x 18-11/16inch) .
JBL Stage A120P is 9mm narrower and 36mm shorter than Revel B1 but it is also 84mm deeper.
Below you can see the front view size comparison of Revel B1 and JBL Stage A120P in scale.
Comparison image of Revel B1 and JBL Stage A120P 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 Revel B1 is approximately 1571.8cm2 / 243.6inch2 and base area of the JBL Stage A120P is approximately 1866.8cm2 / 289.4inch2. The Revel B1 requires 16% less surface area than the A120P 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 Revel B1 weighs 23.18kg / 51lbs and the JBL Stage A120P weighs 18.68kg / 41.1lbs. This makes the Revel B1 24% heavier than the A120P.
Here is a comparison of how Revel B1 and A120P's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Revel B1?
Here are the items that are included inside the box of Revel B1:
Powered subwoofer6-feet AC power cordGrille16-feet Mono-RCA cableOwners Manual
What's in the Box of JBL Stage A120P?
Here are the items that come with the A120P:
Powered subwooferGrille6-feet AC power cord4 Spike feetOwners ManualWarranty CardImportant Safety Instructions
 Base Surface Area |
1571cm2 (402x391mm)
vs
1866cm2 (393x475mm)
|
Takes less floor space |
 Low Frequency Response |
32 Hz
vs
36 Hz
|
Generates deeper bass |
 Height |
415mm
vs
451mm
|
Easier to fit in smaller spaces |
| General |
Revel B1 |
JBL Stage A120P |
| Brand |
Revel |
JBL |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
250 watts |
250 watts |
| Frequency Response |
36-150 Hz |
32-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
250-watt RMS |
250-watt RMS |
| Watts Peak (Max) |
n/a |
500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
Micro Ceramic Composite |
Polycellulose |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
451.0mm (17.8") |
415.0mm (16.3") |
| Width |
402.0mm (15.8") |
393.0mm (15.5") |
| Depth |
391.0mm (15.4") |
475.0mm (18.7") |
| Weight |
23.18kg (51lbs) |
18.68kg (41.1lbs) |
| Enclosure |
Bass Reflex |
Bass reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
1 Year |
| Labor Warranty |
5 Years |
1 Year |