In this review, we will be comparing SubSeries 250 and SubSeries BP8, 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 250 and PSB SubSeries BP8 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 250 and PSB SubSeries BP8 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.Both PSB SubSeries 250and PSB SubSeries BP8 have a single woofer setup however the PSB SubSeries 250's woofer is 10-inch whereas the PSB SubSeries BP8 features a 8-inch woofer.
Frequency Response
SubSeries 250 and SubSeries BP8 has exactly the same frequency range of 25-150 Hz.
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 250 and PSB SubSeries BP8 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 250's and PSB SubSeries BP8's external dimensions. PSB SubSeries 250 has external dimensions of 362.0 x 348.0 x 397.0mm ( 14-1/4 x 13-11/16 x 15-5/8inch) whereas PSB SubSeries BP8 has external dimensions of 355 x 330 x 330mm ( 14 x 13 x 13 inch) .
PSB SubSeries 250 is clearly the larger of the two speakers. Its body is 18mm wider, 7mm taller and 67mm deeper than PSB SubSeries BP8.
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 250 is approximately 1381.6cm2 / 214.1inch2 and base area of the PSB SubSeries BP8 is approximately 1089.0cm2 / 168.8inch2. The SubSeries 250 requires 27% more surface area than the SubSeries BP8 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 250 weighs 19.09kg / 42lbs and the PSB SubSeries BP8 weighs 19.10kg / 42lbs. This makes the SubSeries BP8 0% heavier than the SubSeries 250.
Here is a comparison of how SubSeries 250 and SubSeries BP8'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 250?
Here are the items that are included inside the box of SubSeries 250:
Powered subwooferGrille6-feet AC power cordQuick Start GuideImportant Safety InstructionsWarranty Information
What's in the Box of PSB SubSeries BP8?
Here are the items that come with the SubSeries BP8:
Powered subwooferDetachable grille8-feet Power cordOwners GuideSpecifications sheetWarranty Card
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
 Price per pair* |
999USD
vs
1499USD
|
costs less (*prices may change depending on the seller, location and time) |
 Height |
355mm
vs
362mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1089cm2
vs
1381cm2
|
Takes less floor space |
| General |
PSB SubSeries 250 |
PSB SubSeries BP8 |
| Brand |
PSB |
PSB |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
500 watts |
| Frequency Response |
25-150 Hz |
25-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
8" |
| Woofer Composition |
Polypropylene |
Carbon Fibre |
| Woofer Surround Material |
n/a |
High Density Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
50-150 Hz and 80 Hz |
n/a |
| Firing Direction |
front |
n/a |
Physical Specs |
|
|
| Height |
362.0mm (14.3") |
355.0mm (14") |
| Width |
348.0mm (13.7") |
330.0mm (13") |
| Depth |
397.0mm (15.6") |
330.0mm (13") |
| Weight |
19.09kg (42lbs) |
19.10kg (42lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Available Colors |
n/a |
Satin Black, Satin White |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
1 Year |
1 Year |
| Labor Warranty |
1 Year |
1 Year |