Hi,
Just finished assembling my Bottlehead Crack amp. Plugged in my Sennheiser hd700s, and the left headphone wasn't playing anything. I moved the headphone jack out a little bit from the port, about halfway, and then both the left and right work. Pushing it back in all the way only turns on the right headphone. Does anyone know why this might be happening, and what steps I can take to resolve the issue. Thanks!
