“Just curios what the subwoofer upgrade port on the back of the subwoofer is?”

1-1 of 1 Answer

• Hi there, the subwoofer upgrade is used when there's a firmware update available for the JBL Bar 3.1.

  Answered by JBL Support 6 years ago

  Helpful (0)Unhelpful (0)

  Report

  Sorry, there was a problem. Please try again later.