
The Signa S4 includes a wireless subwoofer that connects wirelessly to the sound bar on start-up and can be placed up to 33 feet (10m) away. In addition, the Bass Adjust feature controls the low-frequency output on both the sound bar and subwoofer. The sound bar comes with one connection via the included HDMI or optical cable (or aux-in for older TVs). Built-in HDMI eARC can pass through eight channels of uncompressed audio.
The Polk Audio Signa S4 Dolby Atmos sound bar system comes complete with HDMI and optical cables at a price of MSRP of $399.