In this review, we will be comparing specifications of S20 and Alpha P3, two Bookshelf cameras from Polk Audio and PSB.
Let's have a brief look at the main features of Polk S20 and PSB P3 before getting into our more detailed comparison.
Let's read on the following sections in order to better understand in detail how Polk S20 and PSB P3 compares and hopefully end up with enough arguments to decide which one is better for you.
Drivers
Both S20 and Alpha P3 are 2-way speakers. S20 features a 1" Terylene high-res dome Tweeter and 1 6.5" Mica-reinforced polypropylene Woofer . On the other hand, Alpha P3 features a 0.75" anodized aluminum Hard-Dome Tweeter and 1 4.5" Polypropylene Woofer .
Frequency Response
S20 has a frequency range of 39-40k Hz whereas Alpha P3 has a frequency range of 57-21k Hz.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
Impedance and Sensitivity
S20 and Alpha P3 has the same Impedance of 8 ohms but where they differ is the sensitivity levels. S20 sensitivity is rated at 88 dB and Alpha P3's is at 87 dBd B.
Sensitivity
Bookshelf Speakers
Power Range
S20 has a power range of 20-125 watts RMS whereas Alpha P3 has a power range of 10-80 watts.
Input Type and Bi-Amping / Bi-Wiring
S20 features Gold-plated 5-way post type posts and Alpha P3 has a Gold-plated 5-way post type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and Alpha P3 features dual binding post speaker terminals for bi-amping or bi-wiring.
Physical Specs