<div>just wanted to show u what i am working on.It's a really low budget
project witch i wanna upgrade in the future.</div>
<div> the plan is simple 2 stacks consisting of 2x es18bph stacked up
veritical and on top of them a replica of a dynacord f12 cvh coaxial horn
loaded 12" +2" driver</div>
<div> building in progres but here are some pictures of the es18bph </div>
i loded the es18's with rcf lf18n401 sound great but the box isn't to good. withouth bracing at the moth of the horn the bottom plate shakes like u woulden't beleve. i abdandoned this project and now i will build 4x planar wawe horn, mircea bartic design
Yah, those look like they need some bracing, Stick a couple panels that should fit right in there, ought to stiffen it up a good deal.
check these out: www.speakerplans.com/forum/forum_posts.asp?TID=13782
It looks like those have the center bottom brace extending much further than yours, and they also have a horizontal brace.
I'd do it ASS scoop/punisher/USB2 style and extend it all the way to the front, and not make the braces too deep.
check out the last two pictures in this tread:www.speakerplans.com/forum/forum_posts.asp?TID=8349&PN=2
I'd do it like either of those, or if I wanted to get fancy, curve it some like that guy who wont disclose what he did with the chamber in the "USB2"