Hello, I am a new user. I use 2 large diaphragm condenser mikes through my Aphex 207 tube pre and into LINE IN 3/4 in back of the PreSonus Firebox 6x8. I keep my levels just below the red in the Aphex and have adjusted my levels in Cubase essential 4. I have lowered my firebox mixer 2-3 DB and...