Hah , I’m no amateur . Of course I’ve read the read the freakin manual wtf . It’s not a vague question , it’s to whether this is a common problem or defect . Honestly it’s a very simple system !!! When u can’t control audio levels at all from the min and one two knobs something’s up . No problem with the effect send return etc , same type of send and return in essence for outboard gear . It’s not a really deep system mixingwise , not much to really understand dude . I’d like to be wrong about that , but it’s not very apparent . Vague ..., please .... I think it’s to freakin point . When all the channel s tracks are bleeding thru with no control and returning to the and the overall send has no effect either your telling me to refer to the manual , that’s curious ...no value to the community , freak off