Well, clearly not then. But I made a bit of a discovery. My vortexbox has a 12V 5A power adaptor. If I move it to a seperate AC wall socket, rather than the power distribution block which all the hifi usually shares.... the problem seems to go away. Hmmm. Still think I might try a different balanced haeadphone cable at some point to see if I can recreate the problem.
3/7/16 at 12:49am