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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
About the Signa S4D
The Polk Audio Signa S4D is an ultra-slim, self-powered 3.1.2-channel Dolby Atmos soundbar system with a wireless powered subwoofer. Its seven-driver soundbar array includes a dedicated center channel for dialogue and two upward-firing elevation drivers for Dolby Atmos height effects; the included 5.9-inch subwoofer supplies low-frequency output. Features include Polk VoiceAdjust dialogue enhancement, Movie/Music/Night listening modes, Bluetooth music streaming, HDMI eARC connection to a TV, and Dolby Atmos/Dolby Digital decoding. The “D” version is an online-exclusive finish variant of the Signa S4 platform. Polk continues to list the Signa S4D in its Sound Bars and Signa Series product ranges, indicating it remains in manufacture/listed for sale.
Specifications
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