I've had a Neo-Pak for about 6-7 months now with no issues, performs flawlessly, sounds killer, etc. etc. Yesterday, I used it for the main purpose I originally bought the head for- an easy to transport, great-sounding head to be used at rehearsal studios where the backline was not to my liking. Had it set up to use with a 'fridge cab yesterday... For the record, it has far exceeded that use, and I've used the Neo for a number of rooms too. To my horror, I had no output whatsoever yesterday. After exploring the cables, speaker cab, etc. we found the issue... There was no output without the HF boost in! Normally, I would not use that particular eq button; I may scoop the mids, but rarely boost the highs. At any rate, I did get the amp to function; there was/is a bad connection of some sort behind that button. And though it "acted up" a bit during the session, overall the amp then worked as normal, with the high boost on or off. Sometimes, there was a cut-out simply by touching the button, but for the most the problem disappeared. Now I know that I could send the head in, no problem there- I'm hoping that the Genz-Benz guys here might advise me as to whether this kind of minor issue is self-correcting, as it seemed to do, or whether it would be best to pack it up and have it inspected and the components involved repaired or replaced. It's working now, but I would hate to see it become permanent or happen during performance. Any comments?