using another wireless subwoofer with Polk Signa 4 soundbar

UNC1RLM
UNC1RLM Posts: 2
edited March 1 in Speakers
I recently bought a new 85 inch samsung uhd 7200 tv and I am broke..lol.. I am trying to piece together a signa 4 soundbar from ebay. I can find a used soundbar with no subwoofer. I am 74 living on social security and I wanted the s4 because of the voice clarity/dolby Atmos but I don't have 400+ dollars. Is there a compatible wireless subwoofer I can use and if so..where can I get it? and where can I get just the S4 subwoofer by itself and its price. Thanks for understanding. Greets and Best Wishes to all :)

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