In this review, we will be comparing two different type of speakers by PSB. PSB Alpha T20 is a Floor-standing speaker whereas the Alpha AM3 is a Bookshelf speaker.
Let's have a brief look at the main features
of PSB Alpha T20 and PSB Alpha AM3 first before getting into our more
detailed comparison.
Alpha T20 and Alpha AM3 are members of PSB's Alpha series of speakers. Below you can find the loudspeakers from this series.
In the following sections, we will get into more detail in order to better understand how the PSB Alpha T20 and PSB Alpha AM3 compare and hopefully end up with enough arguments to decide which one of these loudspeakers 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
Both Alpha T20 and Alpha AM3 are 2-way speakers.
| Driver |
PSB Alpha T20 |
PSB Alpha AM3 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
0.75-inch
|
0.75-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 5.25-inch
|
1 x 4-inch
|
Alpha T20 features a 0.75" anodized aluminum with front waveguide Dome Tweeter and 2 x 5.25" Polypropylene Woofer with a Crossover frequency at 2500Hz. On the other hand, the Alpha AM3 features a 0.75" Aluminum Hard-Dome Tweeter and 1 x 4" Polypropylene Woofer .
Frequency Response
Alpha T20 has a frequency range of 36-21k Hz whereas Alpha AM3 has a frequency range of 56-20k Hz. With a minimum frequency of 36Hz, the Alpha T20 can go significantly deeper on the low side and provide stronger bass compared to the Alpha AM3's min frequency of 56Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Cabinet Type and Port Position
Both Alpha T20 and Alpha AM3 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 Alpha T20's and PSB Alpha AM3's external dimensions. PSB Alpha T20 has external dimensions of 869.0 x 212.0 x 250.0mm ( 34-3/16 x 8-5/16 x 9-13/16inch) whereas PSB Alpha AM3 has external dimensions of 220.7 x 131.8 x 206.4mm ( 8.6875 x 5.1875 x 8.125inch) .
PSB Alpha T20 is clearly the larger of the two speakers. Its body is 80.2mm wider, 648.3mm taller and 43.6mm deeper than PSB Alpha AM3.
Below you can see the front view size comparison of PSB Alpha T20 and PSB Alpha AM3 in scale.
Comparison image of PSB Alpha T20 and PSB Alpha AM3 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 PSB Alpha T20 is approximately 530.0cm2 / 82.2inch2 and base area of the PSB Alpha AM3 is approximately 272.0cm2 / 42.2inch2. The Alpha T20 requires 95% more surface area than the Alpha AM3 which gives it a small disadvantage on placement in tight spaces.
What's in the Box of PSB Alpha T20?
Here are the items that are included inside the box of Alpha T20:
2 Floorstanding loudspeakers2 Grilles8 Rubber feet8 Spike feet8 Hex-nutsQuick Start GuideWarranty Card
What's in the Box of PSB Alpha AM3?
Here are the items that come with the Alpha AM3:
Powered speaker Passive speaker 2 Grilles AC power adapter (attached 45-inch DC cord) 4-feet AC power cord Remote control (PSR-1) 2 AAA batteries 8-feet Speaker cable 58-inch Stereo minijack cable 8 Self-adhesive rubber feet Connection Diagram Warranty Card