In this review, we will be comparing specifications of S20 and Crystal 4.2, two Bookshelf cameras from Polk Audio and Wharfedale.
Let's have a brief look at the main features of Polk S20 and Wharfedale 4.2 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 Wharfedale 4.2 compares and hopefully end up with enough arguments to decide which one is better for you.
Both S20 and Crystal 4.2 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, Crystal 4.2 features a 1" Soft-dome Tweeter and 1 5" Woven Kevlar Woofer .
S20 has a frequency range of 39-40k Hz whereas Crystal 4.2 has a frequency range of 60-20k Hz.
Impedance and Sensitivity
S20 and Crystal 4.2 has the same Impedance of 8 ohms and their sensitivity is also same at 88 dB dB.
S20 has a power range of 20-125 watts RMS whereas Crystal 4.2 has a power range of 20-100 watts.
Input Type and Bi-Amping / Bi-Wiring
S20 features 5-way post type posts and Crystal 4.2 has a 5-way post type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and Crystal 4.2 features dual binding post speaker terminals for bi-amping or bi-wiring.