I have the JBL CS3115, basic twin to the VS3115 (and same driver complement as the SR4735) This is a three way 2226 to the 8 inch M209-8A and then a 2426H.................
Anyway, here is the pdf on slopes and crossover points.........based on the info for the VS3115 in this pdf, where is the 15 recommended to be crossed to the 8 inch?
I'm reading that they want it crossed at 420, which is what I have used. Given that it only has to survive moderate power most all the time, I am considering crossing a bit lower.
To get further into it, I am going to experiment by removing the integral mid/hi unit and putting on top of my 2245H cabinets. I'm thinking of trying a corssover as low as 220. Any thoughts on an M209 seeing 200 hz?