In this review, we will be comparing KUBE 10b and A100P, two Powered Subwoofer speakers from KEF 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 KEF KUBE 10b and JBL Stage A100P first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the KEF KUBE 10b and JBL Stage A100P 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.KEF KUBE 10band JBL Stage A100P have the same driver set up: Both subwoofers have 1 x 10" drivers.
Frequency Response
KUBE 10b has a frequency range of 24-140 Hz whereas A100P has a frequency range of 35-150 Hz. With a minimum frequency of 24Hz, the KUBE 10b can go significantly deeper on the low side and provide stronger bass compared to the A100P'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 KEF KUBE 10b 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 JBL Stage A100P 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 KEF KUBE 10b's and JBL Stage A100P's external dimensions. KEF KUBE 10b has external dimensions of 372.0 x 356.0 x 397.0mm ( 14-5/8 x 14 x 15-5/8inch) whereas JBL Stage A100P has external dimensions of 359.0 x 337.0 x 435.0mm ( 14-1/8 x 13-1/4 x 17-1/8inch) .
JBL Stage A100P is 19mm narrower and 13mm shorter than KEF KUBE 10b but it is also 38mm deeper.
Below you can see the front view size comparison of KEF KUBE 10b and JBL Stage A100P in scale.
Comparison image of KEF KUBE 10b and JBL Stage A100P 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 KEF KUBE 10b is approximately 1413.3cm2 / 219.1inch2 and base area of the JBL Stage A100P is approximately 1466.0cm2 / 227.2inch2. The KUBE 10b requires 4% less surface area than the A100P 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 KEF KUBE 10b weighs 17.50kg / 38.5lbs and the JBL Stage A100P weighs 13.66kg / 30.1lbs. This makes the KUBE 10b 28% heavier than the A100P.
Here is a comparison of how KUBE 10b and A100P's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of KEF KUBE 10b?
Here are the items that are included inside the box of KUBE 10b:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
What's in the Box of JBL Stage A100P?
Here are the items that come with the A100P:
Powered subwooferGrille6-feet AC power cord4 Spike feetOwners ManualWarranty CardImportant Safety Instructions
 Low Frequency Response |
24 Hz
vs
35 Hz
|
Generates deeper bass |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 Base Surface Area |
1413cm2 (356x397mm)
vs
1466cm2 (337x435mm)
|
Takes less floor space |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
 High Frequency Response |
150k Hz
vs
140k Hz
|
Generates higher frequency |
 Height |
359mm
vs
372mm
|
Easier to fit in smaller spaces |
 Price per pair* |
240USD
vs
750USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
KEF KUBE 10b |
JBL Stage A100P |
| Brand |
KEF |
JBL |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
150 watts |
| Frequency Response |
24-140 Hz |
35-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
150-watt RMS |
| Watts Peak (Max) |
n/a |
300-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Not given |
Polycellulose |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
40-140 Hz |
n/a |
| Firing Direction |
front |
rear |
Physical Specs |
|
|
| Height |
372.0mm (14.6") |
359.0mm (14.1") |
| Width |
356.0mm (14") |
337.0mm (13.3") |
| Depth |
397.0mm (15.6") |
435.0mm (17.1") |
| Weight |
17.50kg (38.5lbs) |
13.66kg (30.1lbs) |
| Enclosure |
Acoustic Suspension |
Bass reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
1 Year |
| Labor Warranty |
2 Years |
1 Year |