ADD TO YESTERDAY'S QUESTION, WHY DOES THE V2095, ON SCREEN AT LFE OUT, HAVE AN ADJUSTMENT OF -10 TO +10, THEN IN SUB ADJUSTMENT, IN ANOTHER SETTING, RECEIVER SAY'S IT'S FACTORY SET TO 0db, AND WILL ONLY ADJUST TO -20, I MUST BE MIXED ON GAIN FACTOR'S, THAT BEING SAID, WHERE SHOULD THESE ADJUSTMENTS BE SET? THANKS