On Tue, Jan 10, 2017 at 04:54:24PM +0100, Ralf Mardorf wrote: > I'm sceptic that it makes a difference to connect the - signal with > ground at the receiving device. Depends on the type of output. If it is a transformer or a circuit that controls the voltage difference between the + and - signals rather than each of them separately, then connecting - to ground at the input side would compensate for a ground voltage difference, while connecting it at the output wouldn't. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user