[PD] Crossover simulation

[Andrew Faraday]

Hey Guys
Someone on twitter was complaining about old hardware which relied on proprietary software which he no longer possessed to use a three-out soundcard to run two sattelites and a sub (with no hardware crossover). 
Anyway, Pure Data To the Rescue!!! I've knocked up a little patch (as yet untested) to do the basic job (attached), is there anything I'm missing which would improve this?
Cheers
Andrew 		 	   		  
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