Originally Posted by nube
Looking good James. I'm excited for you!
Any chance we can get detailed pics of the spider, magnets and back plate?
I've got several images of my IB3-18s, ... here's a couple images for now. The first one is just an overview up in the attic, showing the drivers, manifold, mounting, etc.
These can be right click/opened and enlarged for more detail.
This second one, looking up from the media room, illustrates my concern for side-to-side rigidity, and how beefy I made the cross brace ... triple 3/4". I don't think three pieces were needed, but wth. My side panels were flimsy before the drivers were mounted. This was by design, and due to minimizing throat aspects. The driver comes right to the edge of both the manifold top, and the ceiling joist at the bottom.
The plan was two manifolds, both front and rear of room. I wanted both capable to be vertically expanded from a quad set, up to four more for 8 total. Both pics were prior to full completion of the project. There's now other changes, including fluffy batts atop the loose blown in stuff, filling in the areas, and additional electrical feeds and re-work of existing.
Anyway, whatever detail you're wondering about, I hope this helps. Granted, these are the older style. The newer ones a similar visually, except the back plate bump is a bit more exaggerated.