I got a new Euphonic Audio iAmp350 a while back, and the first time I tried to use the DI, I got nothing but a VERY loud noise. I took it back to the shop I got it from. They had EA send a new board that the DI is on. They replaced it, and still the same thing. EA sent a brand new amp (their customer service is top notch). I picked up the amp and took it home. I had it for about 4 months before I ever needed the DI, and when I tried it for the first time again I had the same results with the loud noise. I took it back to the shop and they are going to try to fix it again. I know I should have tested it before I left the shop, and I have tested other DI's in the set-up I have, and they work. Has anyone else experienced this with their EA?