In this review, we will be comparing specifications of S20 and LS50, two Bookshelf cameras from Polk Audio and KEF.
Let's have a brief look at the main features of Polk S20 and KEF LS50 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 KEF LS50 compares and hopefully end up with enough arguments to decide which one is better for you.
Both S20 and LS50 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, LS50 features a 1" Vented dome Tweeter and 1 5.25" Magnesium/aluminum alloy Woofer with a Crossover frequency at 2200 Hz.
S20 has a frequency range of 39-40k Hz whereas LS50 has a frequency range of 79-28k Hz.
Impedance and Sensitivity
S20 and LS50 has the same Impedance of 8 ohms but where they differ is the sensitivity levels. S20 sensitivity is rated at 88 dB and LS50's is at 85 dBd B.
S20 has a power range of 20-125 watts RMS whereas LS50 has a power range of 25-100 watts.
Input Type and Bi-Amping / Bi-Wiring
S20 features Post type posts and LS50 has a Post type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and LS50 features dual binding post speaker terminals for bi-amping or bi-wiring.