In this review, we will be comparing specifications of S20 and A120, two Bookshelf cameras from Polk Audio and JBL.
Let's have a brief look at the main features of Polk S20 and JBL A120 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 JBL A120 compares and hopefully end up with enough arguments to decide which one is better for you.
Both S20 and A120 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, A120 features a 1" aluminum Hard-Dome Tweeter and 1 4.5" Polycellulose Woofer .
S20 has a frequency range of 39-40k Hz whereas A120 has a frequency range of 60-40k Hz.
Impedance and Sensitivity
S20 is a 8 ohms speaker compared to A120 which has a nominal impedance of 6 ohms. These two speakers also have different sensitivity levels. S20 sensitivity is rated at 88 dB and A120's is at 86 dB dB.
S20 and A120 has the same power range of 20-125 watts.
Input Type and Bi-Amping / Bi-Wiring
S20 features 5-way post type posts and A120 has a 5-way post type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and A120 features dual binding post speaker terminals for bi-amping or bi-wiring.