ok just some minutiae here for a sec. I had my e7 plugged into one of my USB outlets on the back of my computer, one of 4 or 6 that is next to the ethernet and just above the video card etc...
SO I was hearing some static from the magni and it wasn't volume related. It would not get louder or only happen when I moved the pot. So I turned my music off and turned the volume all the way up and I started to hear almost a rhythm from my headphones. It sounded like the spinning of my HD and was almost like a humming. I moved the USB around to one of my usb ports on the front of the case and the static/hum is gone. Lesson here is that computers are not the best transports and interference is a problem.
and I am still loving the Magni. Acoustic guitar and older rock is awesome.
edit: static/hum is not gone. Looks like I have a USB ground loop issue. Might have to get a new dac for optical.
Edited by peepr - 1/4/13 at 8:59pm