My system used to have 6 power amps set up through an electronic crossover, tri amp configuration,
feeding 4 Martin Audio bass bins bottom end, 4 Peaveys for the mid and 4 peavey multicell horns for the top.
All mounted in a nice 19" rack mount flight case.
But I had to leave the front cover on the flight case, to stop wandering hands,
the Allen & Heath crossover had more knobs on it than a Man United supporters bus.