A powered subwoofer can be connected directly to a TV's output jacks to boost the bass. An audio Y-adapter condenses the stereo signals into a single signal for the subwoofer to reproduce the bass frequencies. ... Subwoofers connect with a single 1/4-inch audio cable. https://www.techwalla.com/articles/how-to-hook-a-powered-subwoofer-directly-to-a-tv
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A powered subwoofer can be connected directly to a TV's output jacks to boost the bass. An audio Y-adapter condenses the stereo signals into a single signal for the subwoofer to reproduce the bass frequencies. ... Subwoofers connect with a single 1/4-inch audio cable.
https://www.techwalla.com/articles/how-to-hook-a-powered-subwoofer-directly-to-a-tv