In this review, we will be comparing SubSeries BP8 and SubSeries 150, two Powered Subwoofer speakers by PSB. 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 PSB SubSeries BP8 and PSB SubSeries 150 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the PSB SubSeries BP8 and PSB SubSeries 150 compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Both PSB SubSeries BP8and PSB SubSeries 150 have a single woofer setup however the PSB SubSeries BP8's woofer is 8-inch whereas the PSB SubSeries 150 features a 6.5-inch woofer.
Frequency Response
SubSeries BP8 has a frequency range of 25-150 Hz whereas SubSeries 150 has a frequency range of 26-150 Hz. With a minimum frequency of 25Hz, the SubSeries BP8 can go slightly deeper then the SubSeries 150's min frequency of 26Hz.
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
Both PSB SubSeries BP8 and PSB SubSeries 150 have Acoustic Suspension type cabinets. 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
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 PSB SubSeries BP8's and PSB SubSeries 150's external dimensions. PSB SubSeries BP8 has external dimensions of 355 x 330 x 330mm ( 14 x 13 x 13 inch) whereas PSB SubSeries 150 has external dimensions of 280.0 x 447.0 x 143.0mm ( 11 x 17-9/16 x 5-5/8inch) .
PSB SubSeries 150 is 75mm shorter and 187mm less deeper than PSB SubSeries BP8 but it is also 117mm wider.
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 PSB SubSeries BP8 is approximately 1089.0cm2 / 168.8inch2 and base area of the PSB SubSeries 150 is approximately 639.2cm2 / 99.1inch2. The SubSeries BP8 requires 70% more surface area than the SubSeries 150 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 PSB SubSeries BP8 weighs 19.10kg / 42lbs and the PSB SubSeries 150 weighs 6.05kg / 13.3lbs. This makes the SubSeries BP8 216% heavier than the SubSeries 150.
Here is a comparison of how SubSeries BP8 and SubSeries 150's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of PSB SubSeries BP8?
Here are the items that are included inside the box of SubSeries BP8:
Powered subwooferDetachable grille8-feet Power cordOwners GuideSpecifications sheetWarranty Card
What's in the Box of PSB SubSeries 150?
Here are the items that come with the SubSeries 150:
Powered subwoofer6-feet AC power cord2 Mounting feetWall-mount bracketQuick Start Subwoofer GuideLimited Warranty sheetImportant Safety Instructions
 Woofer Size |
8 inches
vs
6.5 inches
|
Larger woofer |
| Low Frequency Response |
25 Hz
vs
26 Hz
|
Generates deeper bass |
 Height |
280mm
vs
355mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
639cm2
vs
1089cm2
|
Takes less floor space |
| General |
PSB SubSeries BP8 |
PSB SubSeries 150 |
| Brand |
PSB |
PSB |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
500 watts |
100 watts |
| Frequency Response |
25-150 Hz |
26-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
500-watt RMS |
100-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
6.5" |
| Woofer Composition |
Carbon Fibre |
Polypropylene |
| Woofer Surround Material |
High Density Rubber |
n/a |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
355.0mm (14") |
280.0mm (11") |
| Width |
330.0mm (13") |
447.0mm (17.6") |
| Depth |
330.0mm (13") |
143.0mm (5.6") |
| Weight |
19.10kg (42lbs) |
6.05kg (13.3lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Available Colors |
Satin Black, Satin White |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
1 Year |
1 Year |
| Labor Warranty |
1 Year |
1 Year |