Hi there. Been trying some home recording. I have an iMac and a Duet through which I connect my electric guitar into garageband. Problem is the voulme is not all that high and the moment I crank it up or add some effects it tends to crack and go red. Have already tried playing with all the volumes and stuff with no luck. Someone suggested a DI Box, so... 1) I was wondering whether it is safe to plug in a DI box between the guitar and the apogee. Could it damage the sound card? and 2) Will adding this device help control the signal better and allow me to crank up the volume a bit. The DI Box I am referring to is http://www.behringer.com/EN/Products/DI20.aspx . Am still very basic when it comes to home recording and would appreciate any help. Thanks in advance.