I bought a pod hd500x today brought it home, plugged in a 1/4 inch adapter to connect my headphones and start building my presets...the audio sounds horrible...i can't get any nice tone out of it I'm using some iPhone head phones but i figured i should still be able to get some nice low volume sounds coming out...i do have it running studio/direct.. can anyone help because I'm not getting my amp till another week and i would love to already have some presets that ill just have to tweak a little...thanks!