2 way synergy top

I wanted to try out building a synergy horn, perfect timing now that we want to replace mid-tops on our ghetto party stack.

I'm thinking of going for 2 Fane sovereign pro 10'' and p audio BM-D750 cd. Plan is to place it directly on the subs and cross it at 120, and push the fanes to 1000hz.

I tried simming it out in hornresp, but feel like the back chamber got awfully small. Will it work or should I increase the chamber a bit?
Would also love some general feedback on the design (or driver choice). The sims are xover at 120-100-1000.
 

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I think you will be fine with those driver choices, although you may end up needing to cross Fane to P-Audio lower than 1000Hz....maybe quite a bit lower.
Just depends on syn horn layout.
What H & V pattern are you working towards?
 
Not only that, you're looking at power. As your horn opens directivity that will translate into less apparent pressure.
What H & V pattern are you working towards?
90x60, maybe that's a bit hopeful, that's what the old horns were (at least specced) at.

I think you will be fine with those driver choices, although you may end up needing to cross Fane to P-Audio lower than 1000Hz....maybe quite a bit lower.
Just depends on syn horn layout.

The BM-D750 seems to have a bit wiggle room being 2'' down to 500hz, so that should be enough to play with I think.


small back chamber equates to more reactive behavior, which is useful in a horn. Called "reactance annuling", it can help lower frequency efficiency.

Need to buy you a beer mate for your awesome spreadsheet and write up :drink: