kkinerk_line6 replied to russgoos's topic in DT50 / DT25I have had similar issues when using the L6 Link. I was using a standard XLR cable. If the cable from the HD500 to the DT amp crosses any power cables, you can get interference. This can result in changes to the DT Amp configuration. I have since switched to an AES/EBU cable and carefully route it to ensure minimum interaction between this cable and power cables. Haven't had the problem since. This may not have been your problem, but it is something to be aware of.