great suggestions thusfar....Configurations can play a part of your sound, ortf works well for me when I am in a good room as an xy config can rolloff the bass a bit. I would also submit that the ad-20 is a bright box, IMO.....combined with a bright mic, again IMO can yeild a bright tape....but I would try ditching the rolloff, stereo configs and different rooms/PA's before I go changing gear....that setup should yeid some nice tapes.