I think it really depends on the "whole system"
I had the Shindo Apetite since I like integrated amps....was not right for me and had some tube "noise" ...had various sets of tubes and it persisted. I also run a FI-X 2a3, also has some transformer noise due to design.
Luxman SQ-150n dead quiet, PP, and not running some Dennis Had SEP with his Preamp,also quieter than the Shindo. I agree Dennis Had gear might be the "Shindo"of the USA, it is amazing nd you can run many types of tubes.
IN the end it is all the pieces and how they come together.