I think it depends upon the coax and the optical being used. I use a 1300 individual fiber optical with the AK and have converted a H140 to coax while retaining the optical. With 1300 fiber optical you get rid of almost all the reflections and end up with a very good signal. With coax, you are often better off with a coax of around 3 feet due to reflections. They are both good when done right and since many dacs have coax, it is excellent to have both and it would be nice if the AK would come this way but nice that someone can modify it if needed.
Edited by jamato8 - 3/12/13 at 4:18pm