Ok, this might be a thread that will get me flamed, but lately I've been having this question more and more. I see a lot of threads saying things like "I need a bigger rig because I'm playing bigger rooms or outdoor events...". And I'm not getting it. In bigger rooms or outdoor events there should be sound reinforcement that includes subwoofers and enough power to make the entire band fill the room, i.e. a bigger rig shouldn't be necessary. Am I missing something? I just played a venue that holds 25,000 people--it was for a half marathon and nowhere near full--but we had a prosound company providing sound reinforcement and I could have played it with my little 2x10 cab. As it was I put a 2x12 underneath the 2x10, but it was purely for visual effect--the amp's volume was close to zero. So what gives? How come we're looking for big bass rigs instead of using the PA and the available monitor systems? I mean, I'd much rather have less to move and put all that load on the sound guy. Ok, ready, go!