Vict0r
Addicted to Fun and Learning
It's not ground loop hum that you get from unbalanced.
I ran with balanced.
It's just hiss that you can hear with no music playing or even during quiet passages.
A few people in this thread have noted the same.
I guess its possible they fixed it in later production units.
Oh you mean the whole 110v/220v transformer issue that some units seem to have? My friend's pair does this. He needs to use it with a converter to fix the issue. I got lucky, I guess.