Polk Audio Signa S4 Ultra-Slim Sound Bar for TV with Wireless Subwoofer, Dolby Atmos 3D Surround Sound, Compatible with 8K, 4K, HD TV, eARC and

ADVANCED ULTRA-SLIM SOUNDBAR & WIRELESS SUB - The Signa S4 with an upgraded 7-driver array and a dedicated full-range center channel delivers True 3D

Polk Signa S4 Soundbar Review: More Dolby Atmos for Less - CNET

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