im running an 828mk3 and a imac 10.6.8. im also using logic pro 9 . i'm trying to record a guitar track in logic using logics guitar rigs. i cannot play at full volume because me signal clips. to get a nice low signal my volume on my guitar has to barely be on. i refer to books and they all tell me the same thing, turn the mic pre amp gain knob down to adjust the level. this is not possible on the 828mk3. i w as advised from another forum to post my question heresome one tell me what i should do?