Hi guys, here's something that I picked up from some of my experiences coordinating large halls. For large venues, I would suggest that you stress on the importance of stereo panning of the different instruments on the stage through the mixer. Trust me, having the guitars, keyboards, and drums blasting out from both left and right channels even at low volumes will cause bass boom and feedback. Panning the individual instruments left and right will cancel out most of the resonance (improves on clarity also:)).

Hope my 2 cents helps

Hi hope,

Don't have any diagrams to show you though but I'll try my best .. For example, you have 2 electric guitars that will be playing at the same time. You'll pan Guitar 1 to the left and Guitar 2 to the right so as to separate the sounds coming out from the main PA speakers..

So in essence, both guitars can play at normalized volume with each of them able to be heard clearly by the audience via left and right PA speakers. Same goes to other instruments that are loud and needs clarity like keyboards and also drum toms. So when the keyboards and the guitars are hitting a low E at the same time, you will less likely to get the bass boom and audience can also differentiate the instruments better..

But you need to make sure your PA is wired for stereo, else the sound still comes out unpanned on a mono setup. Hope this helps...cheers