In this review, we will be comparing D215s and KUBE 10b, two Powered Subwoofer speakers from Perlisten and KEF. 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 Perlisten D215s and KEF KUBE 10b 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.Perlisten D215s and KEF KUBE 10b have a totally different setup: the Perlisten D215s features x -inch drivers whereas the KUBE 10b features 1 x 10-inch drivers.
Frequency Response
D215s has a frequency range of 20-200 Hz whereas KUBE 10b has a frequency range of 24-140 Hz. With a minimum frequency of 20Hz, the D215s can go slightly deeper then the KUBE 10b'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
High Frequency
Subwoofer Speakers
Cabinet Type
The Perlisten D215s 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 KEF KUBE 10b have Acoustic Suspension type enclosure. 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.
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 Perlisten D215s's and KEF KUBE 10b's external dimensions. Perlisten D215s has external dimensions of 804.9 x 500.1 x 650.5mm (31.69 x 19.69 x 25.61inch) whereas KEF KUBE 10b has external dimensions of 372.0 x 356.0 x 397.0mm (14-5/8 x 14 x 15-5/8inch).
Perlisten D215s is clearly the larger of the two speakers. Its body is 144.1mm wider, 432.9mm taller and 253.5mm deeper than KEF KUBE 10b.
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 Perlisten D215s is approximately 3253.2cm2 / 504.2inch2 and base area of the KEF KUBE 10b is approximately 1413.3cm2 / 219.1inch2. The D215s requires 130% more surface area than the KUBE 10b 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 Perlisten D215s weighs 92.00kg / 202.4lbs and the KEF KUBE 10b weighs 17.50kg / 38.5lbs. This makes the D215s 426% heavier than the KUBE 10b.
Here is a comparison of how D215s and KUBE 10b's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
20 Hz
vs
24 Hz
|
Generates deeper bass |
 High Frequency Response |
200k Hz
vs
140k Hz
|
Generates higher frequency |
| Woofer Size |
10 inches
vs
inches
|
Larger woofer |
 Height |
372mm
vs
804mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1413cm2
vs
3253cm2
|
Takes less floor space |
 Price per pair* |
750USD
vs
10995USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Perlisten D215s |
KEF KUBE 10b |
| Brand |
Perlisten |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Sensitivity |
92 dB |
n/a |
| Frequency Response |
20-200 Hz |
24-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
n/a |
300-watt RMS |
Drivers |
|
|
| Woofer Quantity |
|
1 |
| Woofer Size |
" |
10" |
| Woofer Composition |
|
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
40-140 Hz |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
804.9mm (31.7") |
372.0mm (14.6") |
| Width |
500.1mm (19.7") |
356.0mm (14") |
| Depth |
650.5mm (25.6") |
397.0mm (15.6") |
| Weight |
92.00kg (202.4lbs) |
17.50kg (38.5lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 Years |