You didn't mention on what specific type of 18" subs you are using but from my opinion, those 2 X 15"+ horn tops can definitely cross your subs efficiently without the need of Kick bins.
I mean for home audio sure.
But we're building a festival stage so this means that we want really strong kicks, much stronger than we could get from our dual 15 with horns.
And yes, your right, I left out what specific type of 18 subs I'm using for a reason; that reason is to not derail this thread that is focused on kick bins.
Really tho doesn't matter what subs you use as long as its low ms delay and functions well from 20-30hz to 90hz.
I'll prob build some c-2e gf 1x18 or 1x21 if they come out with a gf design for it if your looking for something to nerd out on they are cool cabs.
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