I have to admit, the Outlaws have a good forum. With that said, I decided to return my 950. I had two units with intermittent problems and the Buzzing just made my decision for me.

I have a lot of electronic equipment at home and the power supplies do not buzz, so I don’t think that the 950 should be doing it. If it is indeed susceptible to line noise, then the Outlaws should design the unit with the proper power supply isolation (filtering).

It did cost me $32 to “rent” the 950 for a few weeks, but it was the only way to see (perhaps I should say hear?) how the 950 preamp behaved.

I did purchase another preamp. It did cost more than the Outlaw unit, but I'm very happy with it.