I have a Casio Privia PX-5S and I have a 3/4 inch going from my keyboard to my audio interface to go into my mac which I use Logic. When I play on it, the sound peaks even when my volume knob on my keyboard is turned half way. I have to turn it down quite a bit to get rid of any peaking but the piano is so silent, I might as well not have it in any of my music. But when I play live and I'm all plugged into the system, it doesn't peak at all. Any tips on what I should do with this? Any help would be awesome! Thanks! -Clint