Thank you for reply
1. I use the XLR input now by my BBE 831 machine and the problem still here.
2. I always choose the mono 1 for Input, after the problem happen, I try to use mono2 jack, it can't be solve until now.
and I try again now, its sounds like the distortion sound when I bypass any effect and my preamp… Its the biggest problem,
but I can with the small volume use the S/PDIF out to the Recording Interface, use other boost software vst plugin for recording, the sound is great, its only happen by XLR out and TR/TRS out on the Eclipse, thank you.