Had the same issue a few weeks back, right channel started having a slight distortion and became worse over a few days. Contacted customer service and the unit was replaced within a few days. My replacement unit has been working great for the past few weeks with no issues. Must of had a bad board.

I also experienced the same, my issue was a bit of distortion in the right channel which became worse over a few days. Tried all the same trouble shooting checks (cables, headphones, power cord and SE). Only had my Jot 2 less then a week before the issue started and then the channel blowout...