i am currently borrowing this amp and a guitar from a relative and was wondering if anyone knew if i could use headphones with the amp? ive looked all over online and cant find info on this exact model and cant seem to make it work myself but wasnt sure if i was doing something wrong. there are 2 input slots, a foot switch, pre out, and pwr in slots as well. i really am just beginning and have no idea what i can and cant do so any help would be greatly appreciated. thanks!