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.
Polk Audio's latest addition to its SurroundBar line is the SDA Instant Home Theater, which shrinks the size of previous models and adds a wireless subwoofer. Matthew Moskovciak Senior Associate ...
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