The Polk Audio Signa S4 has a 3.1.2 channel configuration grouped with five horizontal facing speakers (the left and right channels have a tweeter and midrange) and two vertically firing full-range ...
The affordable Polk Audio Signa S4 soundbar and subwoofer is a fantastic way to experience immersive audio, but it can’t be upgraded with additional speakers, and you’ll have to do without Wi-Fi.
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