Hi All , I have a Presonus ADL 700 with a loud , white noise with crumpling paper in it when I use the instrument input. I have been using the mic input for guitar and bass since Ive had it , although if I tweak the EQs more than 2oclock I can hear a hissing comming back in . Anyone had this sort of problem ? What was your solution ? ( hope its not gonna hurt my pocket ) I can get a clean signal with phantom powered mic if thats of any help.