I have a couple amps that I'd like to have tested and repaired if needed. They are both us amps. The 100x works ok from what I recall. But there is some meltage around the positive battery input. Definitely fried one of the lil doohickeys on the board. And the 400 I got from some tweaker and its never seemed quite right. The end with the terminals has been replaced with one from a different model so who knows what it's been through. Everything on the board looks to be ok on tho. So anyways I want to run these someday so I need to have them checked out. Any good places or people around that fix amps and do good work?