Tiffany...I have read according to ps audio's website that the unit will indeed eliminate all if not most of internal transformer hum. In fact, I visited the site to do some research and according to them, if I remember correctly, an amp that hums w/o any thing connected is perhaps in need of repair. But owners here say it's the nature of the beast!!!!???? I should be grateful it powers up and works. But that hiss, buzz, slight hum is still bugging me. I don't see how an electronic device that received superb reviews and price lists in the thousands can be broke if it makes a little bit of noise. But then again...?
