In this review, we will be comparing specifications of S20 and BW 707 S2, two Bookshelf cameras from Polk Audio and Bowers & Wilkins.
Let's have a brief look at the main features of Polk S20 and BB&W 707 S2 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 BB&W 707 S2 compares and hopefully end up with enough arguments to decide which one is better for you.
Both S20 and BW 707 S2 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, BW 707 S2 features a 1" Decoupled Carbon Decoupled Soft-Dome Tweeter and 1 5" Continuum Woofer .
S20 has a frequency range of 39-40k Hz whereas BW 707 S2 has a frequency range of 50-28k Hz.
Impedance and Sensitivity
S20 and BW 707 S2 has the same Impedance of 8 ohms but where they differ is the sensitivity levels. S20 sensitivity is rated at 88 dB and BW 707 S2's is at 84 dBd B.
S20 has a power range of 20-125 watts RMS whereas BW 707 S2 has a power range of 30-100 watts.
Input Type and Bi-Amping / Bi-Wiring
BW 707 S2 features Post posts which makes bi-amping or bi-wiring possible. S20 has a 5-way post which doesn't feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both S20 and BW 707 S2 features dual binding post speaker terminals for bi-amping or bi-wiring.