The Polk Audio Signa S4 is a soundbar and wireless subwoofer system designed for immersive home cinema sound. Featuring Dolby Atmos and DTS:X support, the S4 delivers three-dimensional audio with height channels from a slim soundbar form factor.
The soundbar houses multiple drivers including dedicated upward-firing speakers for Atmos height effects. The included wireless subwoofer adds deep bass without the need for additional cables. VoiceAdjust technology ensures clear dialogue at any volume level.
Connectivity includes HDMI eARC, optical input and Bluetooth for wireless music streaming. The low-profile design allows placement in front of a TV or wall mounting.
| Audio Format | Dolby Atmos, DTS:X |
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| Channels | 3.1.2 |
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| Subwoofer | Wireless |
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| Connectivity | HDMI eARC, optical, Bluetooth |
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| Features | VoiceAdjust dialogue enhancement |
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