hmmm…what do you mean for AC power supply? my H8000 has only a power cable,that I plug into the socket,maybe could the power cable be internally broken?

I'll try to plug my jack cable into the other analog inputs,cause I don't use the digital,at all

also,I'll try to isolate all the undesidered "bad things"  just to pick out only the undesidered audio,clicks,pops noises,ok?

see you later