In this review, we will be comparing specifications of S20 and Uni-Fi BS U5 Slim, two Bookshelf cameras from Polk Audio and ELAC.
Let's have a brief look at the main features of Polk S20 and ELAC Uni-Fi BS U5 Slim 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 ELAC Uni-Fi BS U5 Slim compares and hopefully end up with enough arguments to decide which one is better for you.
One of the fundamental differences between these two speakers is that S20 is a 2-way design whereas Uni-Fi BS U5 Slim is a 3-way speaker. S20 features a 1" Terylene high-res dome Tweeter and 1 6.5" Mica-reinforced polypropylene Woofer . On the other hand, Uni-Fi BS U5 Slim features a 1" Soft-dome Tweeter , a 4" Midrange and 1 5.25" Aluminum Woofer .
S20 has a frequency range of 39-40k Hz whereas Uni-Fi BS U5 Slim has a frequency range of 46-25k Hz.
Impedance and Sensitivity
S20 is a 8 ohms speaker compared to Uni-Fi BS U5 Slim which has a nominal impedance of 4 ohms. These two speakers also have different sensitivity levels. S20 sensitivity is rated at 88 dB and Uni-Fi BS U5 Slim's is at 85 dB dB.
S20 has a power range of 20-125 watts RMS whereas Uni-Fi BS U5 Slim has a power range of 40-140 watts.
Input Type and Bi-Amping / Bi-Wiring
S20 features Post type posts and Uni-Fi BS U5 Slim has a Post type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and Uni-Fi BS U5 Slim features dual binding post speaker terminals for bi-amping or bi-wiring.