Well I broke the line in jack on my Fiio E10k, one channel went out I could get both if I force the wire upward but I could not reliably hold it there. So instead of sending it back like I should have I took it apart and managed to break the line in jack even more so now I have no channels. I noticed the line out jack on the E10K is exactly the same as the line in. Do you think it's feasible to remove the line in jack, then remove the line out jack and solder it into the line in? I am a novice solderer and don't have much experience, but I am willing to try. I can take pictures of the E10K's PCB if anybody wants.