So recently my band has been playing shows where the drums and the vocals only get mixed into the FOH. Bass and Guitars are not put in the mix so our lead guitarist suggested that we set up or backline with 2 810s on either side of the drum rise and 2 412 cabinets on each side which makes a total of 4 412s. I have never ran 2 810s before and Im curious about the sound. Does the spread of the cabs sound full or will I get a louder volume? I have seen many bands do this and many say that this certain setup can cause phase cancellation. Do any of you run this type of setup? If so how does the sound compare to just running 1 810. Thanks.