Finally received my Carbon back from the repair center this week, and it's worse!
This amp is not only exhibiting the same problem, but now I am getting much more aggressive distortion in both channels (not just the left), and with
all of my headphones, not just the Orthos. It sounded ok when I first started running it last night, but when I got home this evening (after running it for 20 hours straight), the distortion is really bad!
It doesn't matter how I am running it. Balanced out of my Emotiva DC-1, or directly out of my AK240, or iPhone 5C through the single-ended inputs. I tried my B&W P7s, HD800s, HE1000's….it doesn't matter. I also ran it directly out of my Meridian G08 and Esoteric DV-50 without a DAC. I used different power cords and different outlet in my home on different circuit breakers.