focal headphones lost output on left side


my focal elear headphones lost output on left side working great still right side.  apparently focal headphones have this problem not so uncommon

its no longer under warranty and replacing the driver requires both replaced and not worth cost $600 or so.

anybody know a reputable person who might be able to repair the headpones in USA?


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Switch the connectors at the headphone to see if it is the cable.My Elear cable is also bad for the left channel and I need to see if anything can be done as well.