I'm learning all this new technology. I was wondering what you had your bass engine settings at. You have a bass center which I have set @ 200 currently and you have a Q setting which they say broadens or narrows it's effects. I really don't understand what all this does and my ears aren't what they used to be so it's really hard to tell what the effects are from these settings. Also for Ipod users. Do you use the sound check feature on the Ipod or does this hurt sound quality. And what volume level do you have your Ipod set at? Max, 90% 80% etc.?