I love the rkv mark 3 I own associated with a Grado PS100e.
I listen two sources : a french streamer dac from Liedson and a Rega planar 3 with Goldring 1042 cartridge.
The phono preamp within mark 3 sounds great, better than some other dedicated phono preamp I tried.
But I have a problem bothering me : a background noise when phono source is selected.
When the streamer source is selected it is silent.
Rega turntables have the particularity to have no ground wire, I don't know if it is cause of the problem.
With former amps I did not have the background noise problem.
Is there a solution ? Any idea ?