I don't play many gigs thru large PA systems, but played a large event with a good size PA the other night. I always send a flat signal to the front of house, but got some gripes that the bass sounded mushy and boomy from the sound guy. I flipped the switch on back from pre-EQ to the post-EQ and voila, the Front of house signal was cleaned up. I had bass and treble flat and mids boosted to 3 o'clock at 2.5k. Is the pre DI signal the the same as the Streamliner when it is set flat? If so, could that explain this issue?