On Mon, Apr 6, 2015 at 4:54 AM, Fons Adriaensen <fons@email-addr-hidden> wrote:
[ ... stuff ...]
I'd also mention that these days I do most of my computing on a system with
a 12VDC power input, and for the last 3 months, that system was powered
from a solar-charged 12VDC power system. There is no "ground" in this
system, and no noise - the power supply is as clean as you can get,
audiophile class in fact :)
And yet ... my "cheap" 12VDC amplifier which is also a USB DAC, suffers
from the pin<=>chassis wiring problem. Just touching the USB connector to
the chassis of the computer generates noise. It doesn't have to be anything
to do with AC power supplies ...
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/listinfo/linux-audio-user
Received on Mon Apr 6 16:15:02 2015
This archive was generated by hypermail 2.1.8 : Mon Apr 06 2015 - 16:15:02 EEST