PSB Alpha T20 is a 2-way Passive Bass Reflex Floor-standing speaker by PSB. It features a 0.75" Dome Tweeter and 2 x 5.25" Polypropylene Woofer. The speaker has a frequency range of 36-21k Hz and a sensitivity of 90 dB. PSB Alpha T20 has an MSRP of 799$ per pair.
Room Size Suitability
The size of the room where you plan to use the PSB Alpha T20 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Bad |
| Small Room | Poor |
| Mid-size Room | Good |
| Large Room | Good |
| Very Large Room | Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
PSB's Alpha Series of Loudspeakers
Alpha T20 is a member of PSB's Alpha series of Passive speakers. Below you can see the main specs of these speakers.
PSB Alpha Series Speakers
PSB Alpha Series Speakers
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Frequency Response of the PSB Alpha T20 Speaker
PSB Alpha T20 has a Frequency response range of 36-21k Hz at ±3dB and Power Range of 15-120 watts. With a minimum frequency of 36 Hz, Alpha T20 delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.
To focus on the subwoofers that are in a similar price range with PSB Alpha T20, check out the Powered Subwoofers under $1000. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how Alpha T20's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
Crossover frequency of the PSB Alpha T20?
The Crossover frequency of the Alpha T20 is set to 2500Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
PSB Alpha T20's nominal impedance level is
8 ohms and has a sensitivity of
90 dB.
Sensitivity
Floor-standing Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so PSB Alpha T20 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
90dB of the PSB Alpha T20 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise.
Check the amplifiers that are in a similar price range to the PSB Alpha T20:
Input Type
Alpha T20 has 5-Way post type connectors and lets bi-amping/bi-wiring. Bi-wiring can enhance the overall transparency of your loudspeakers by using separate speaker wires for the low and high-frequency drivers from a single amplifier. Bi-amping, on the other hand, involves using separate amplifiers for the high and low-frequency drivers, potentially resulting in a greater dynamic range and reduced distortion.
PSB Alpha T20's 5-Way post terminals allows Bi-amping or bi-wiring
PSB Alpha T20 External Dimensions and Weight
PSB Alpha T20 has external dimensions of (Height x Width x Depth) 34-3/16 x 8-5/16 x 9-13/16inch (869.0 x 212.0 x 250.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of PSB Alpha T20 is approximately 530.0cm2 / 82.2inch2.
To get a better perspective on the real life size of PSB Alpha T20, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
PSB Alpha T20 Speaker Size Compared to a Compact Disc
Here we place the PSB Alpha T20 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.
PSB Alpha T20 Floor-standing Speaker next to a Media Stand
WeightThe PSB Alpha T20 weighs 11.89kg / 26.2lbs per piece. Here is a comparison of how Alpha T20's weight compares with the average, max and min weights in its class.
Weight
All Floor-standing Speakers
Weight
Floor-standing Speakers under $1000
Cabinet type and Materials
PSB Alpha T20 has a
Bass Reflex type cabinet and a MDF, Wood-grain vinyl finish. Bass Reflex type loudspeakers (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.
Speaker Feet
PSB Alpha T20 comes with the parts below which you can use to secure your loudspeaker on the surface that you are putting on:
8 Rubber feet8 Spike feet It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.
Port Position
PSB Alpha T20 is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.
Available colors
PSB Alpha T20 is available in Black.
Does the PSB Alpha T20 come with a Grille?
Alpha T20 comes with Magnetic grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
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
Recommended Accessories
Here is a list of accessories that we think you may need for the PSB Alpha T20.
User's Manual
For more information about how to setup, use and maintain the PSB Alpha T20, use the direct link below to download the official manual document:
Download User Manual for PSB Alpha T20
Official Product Page
Official manufacturer's product page for the PSB Alpha T20 speaker can be found below:
Official Product Page for PSB Alpha T20
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.