I have got the Audio Technica Pro700MK2 anniversaries, with a ZO 2 and a fiio L3, ever since i started to go low gain paired with my L3, the volume can't really go that loud. i pretty much have to listen to all my music on the pre high gain mode (purple). The thing is, high gain mode gives me the right amount of volume I am listening like three quarters of the way through. But as soon as I use my L3 in low gain i can't hear the right amount of volume. I really want to keep listening to my LOD because it works so well and improves it en fold. What can I do to make songs louder through low gain???