Hey, I just finished putting together a whole new setup (with some appreciated help from fellow TBers ) a week ago. Here it is: Musicman Bongo 5 string (active 4 band eq, pickup blend) SWR 400S (Bass, Treble, 4 band variable graphic eq) Ampeg 4x10 HLF (Tweeter knob on back) I've been messing with all the controls for a while, but I am just a little overwhelmed. I got it sounding ok at home, but we practice in lecture halls at my school, with pretty crappy acoustics, and it just sounds horrible! Super muddy unless I cut out a lot of base, but then it just sounds hollow. Plus, I don't know if I should be cutting/boosting on my amp or my bass. Does anyone have a similar rig? Any general advice for echoey rooms? Also, is it bad to cut on your bass and boost on your amp? I know some of these are probably covered in other posts... I read the one about how different frequencies sound (nice job ivanmike) but I am still frustrated. Any advice / links to good threads would be much appreciated.