So I've been playing around with the Kemper at home with my headphones and it sounds absolutely amazing. Tones are pretty incredible. Problem is, when I plug in my IEMs directly into the Headphone Out (is that a no-no?), only one half of the signal comes through (right ear) and it's really gritty and, for a lack of better word, grainy as opposed to the smooth, balanced tone in the headphones. I also have to turn the volume down to 5.0 instead of the 9.something that I have the headphones at. Any thoughts on what this could be? Headphones are Beyerdynamic DT770s and the IEMs are 1964 V6-Stages. Thanks!