[QUOTE=cedrich999;2531982]Have single RCA type plugged into headphones on turntable that goes to a Magix pre- amp(input) then output to single mini plug to PC. I have tried both the microphone plug [/QUOTE]
Not compatible. ATX mic-in is for condenser mic only, no dynamic mic or pickup support. Dynamic Pre-amp equalizer input not compatible with Headphone-Output of turntable player.
Use the standard output of the turntable with the Magix turntable-equalizer preamp and use the blue input and Audacity.