Taylor as Thomas says the best thing to do is space them out and if you get one of the clever amps perhaps delay the outers if req'd. Download one of the prediction programs, Danley's one'll do use a generic speaker with a 110 deg dispersion and try some layouts with that. If you fly them it's sometimes easier to fly them landscape with a yoke and rotate the horn especially if headroom is tight. The trick is to use the assymetric horn to cover both the nearfield and the further away seats, I've found it easier to do this with the yoke idea than messing with steels and chains. G