For background, my band uses in-ears so generally my bass cab goes out front with a pa top sitting on it. The other top is on the other side of the stage sitting on our single subwoofer. This has worked really well as it gets my bass sound out front and fills out the low end on the side of the stage without the subwoofer. It really seems to trick the ear that way. But, since you would normally get a more even low end with subwoofers placed together, would I be better off putting my cab next to the side with the subwoofer? We are playing a room this weekend that is basically gymnasium like. Most of you understand this type of nightmare. So, Im trying to up the odds of sounding good. I have also thought about stacking the pa tops in a vertical columb on top of the subwoofer, hoping the keep the sound as coherant as possible with less cancelations, sound bouncing off more walls etc. In that case the band would set up with the bass amp on one side of the drums, guitar amp on the other and the vertical pa stack off to one side. Any input would be much appreciated.