Schitt freya preamp hum- how do I get rid of this?

+ 1 on the advice to change the tube locations (swap them).  

Does it make this humming sound regardless of whether you do anything (no music, no volume, etc.)?  Is it emanating through the speakers only or do you hear something coming from the unit itself? 

It sounds like ground loop hum if it isn't a bad tube.  

With regard to Freya build quality, that's a superb piece of gear. I've been inside it and in my humble opinion it is very well made and perhaps even better designed.  

With regard to Freya build quality, that's a superb piece of gear. I've been inside it and in my humble opinion it is very well made and perhaps even better designed.  

   I agree!

Dont take this wrong way guys, but none of us are any better than the best we have heard or have seen. So if you compare a Schiit Freya against a better sounding unit and design, you are not nearly as impressed. I stopped looking for giant killer products years ago but they simply dont exist. I also learned long ago that I am simply not capable of differentiating a poorly made from a well made product and then applying this build quality to sonic performance.

I own an original version Freya and it's dead quiet, even with horn speakers in the tube mode. Lucky me.