Hi! I'm plannig to buy new headphones, that has a little bit higher impedance(120 Ohms), but also i read that this headphones needs amplifier to sound good. I'm talking about AKG K612 Pro, and I'm going to run it on POD Studio GX, but i can't find any information about impedance range that this interface can handle. Someone has any expirience about this specific headphones and Studio GX set, or just plugging high ohms headphones into Studio GX?