S20 is a 2-way Passive Bass Reflex Bookshelf speaker by Polk Audio. It features a 1" high-res dome Tweeter and 1 6.5" Mica-reinforced polypropylene Woofer.
Polk S20 is a member of Polk Audio's Signature S series of speakers. Below you can see the latest models in this series and how their main specs have changed with each new version.
Polk Audio Signature S Series History
S20 has a Frequency response range of 39-40k Hz and Power Range of 20-125 watts.
As you can see from the chart, Polk S20 with its 39 Hz features the lowest Low Frequency level among the Bookshelf speakers in our database, promising a very good bass range.
On the other hand, model with the highest Frequency is Revel M126Be with its high frequency limit of 44 kHz.
Impedance and Sensitivity
Polk S20's impedance level is 8 ohms and has a sensitivity of 88 dB.
S20 features 5-way post type connectors. Bi-amping and Bi-wiring is not possible.
Cabinet type and Materials
Polk S20 has a Bass Reflex type cabinet and Meddite MDF finish. Polk S20 is a back-firing port speaker. so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.
Polk S20 is available in Black, Walnut.
Weight and Dimensions
Polk S20 has external dimensions of (Height x Width x Depth) . Each speaker weighs 17lbs .
S20 doesn't sport any built-in mounting bracket so you need an external structure to mount on walls.
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.