Great, tnx for helping me out!   Any recommendations for low noise OAs?   Anyway, I'm gonna send you a PM.  

Yes. A little less, but yes the hiss is still here.

I just received a ZERO DAC. Using Grado SR-80 I can hear a hiss when the amp is supposed to be silent. It's noticeable at very low volumes, right from the start and just turning the pot slightly. Even more noticeable at 9 o'clock, and there is a loud hissing when pot is at 12 o'clock.   As I...