Following some recent threads on noise removal on the forum I ran some tests today on my audio setup.
Onne conclusion that I was drawn to is that my trusty Edirol UA-1EX USB soundcard introduces a tiny bit of hiss into my recording. It is so tiny as to be undetectable in normal recordings and is certanly less than the noised added bt my ARTcessories preamp (or the TT itself - I didn’t test that far back down the chain).
For details of the tests see this thread: https://forum.audacityteam.org/t/noise-tests-on-my-audio-recording-setup/15901/1
WC