A little about the room... It is a large basement media room with a 125" screen, projector, etc. Main room is 4992 cubic sq ft and there is another room that is 1300 cubic square feet that is open to it. So slightly over 5100 cubic sq ft. The room is actually well insulated (all walls, and ceiling) and there is a lot of heavy drapes, carpet (this is a basement) and sofas/chairs.
I currently have an Hsu VTF-15H and am quite happy with that subwoofer, but I completed the basement build almost a year ago and am looking for a new project. I was seriously contemplating a second VTF-15H (my plan all along was to have at least two), but now I am really thinking DIY. As for size restraints and WAF factor, well I can go pretty big, but I don't think anything over 30" tall will fly. I might be able to go 35" tall. Depth-wise, no more than 30" deep, and can probably go another 30" wide if needed. I can probably go bigger in any direction accept depth if needed.
Budget... Well, I would like to stay under $1000. Ideally around $700, but am open to spending more and am open to duals subs now, and the possibility of adding a 3rd and maybe 4th. I was hoping to keep the Hsu, but am open to selling it after I build one or two subs and see how I like them. That sale could fund 1-2 more subs.
I have been reading lots of build threads and played around with some calculators, but am really getting myself confused. Here are some ideas I am floating around:
- Copying Gorilla's dual opposed Dayton 18" sub thread (http://www.avsforum.com/t/1435795/first-diy-project-for-a-guy-looking-to-upgrade-multiple-sealed-18s
). I would most likely start with one of these then add a second. His box is sealed and is roughly 7cubic ft. He is using this driver which seems like a winner:
My concerns with this build are that the dual opposed subwoofer baffles me in terms of wiring. So I would need some newbie guidance there...
I also am not sure if my budget is better building dual opposed, or two 24x24x24 cubes collocated using the same driver.
I also am open to using dual 15" drivers, these don't have to be 18", but I figured since I can go with a fairly large box and also have such a large room, 18" seems like a better move now with the thought of adding identical subs later?
I also am confused on amps. I don't want to spend too much money on an amp, but I want something that can power duals now. Was looking at the Dayton SPA1000, Behringer iNuke 3000DSP, and Behringer EP4000.
So what would you recommend experts? Dual opposed 15"? Dual opposed 18"? Single 18's?
I have several weeks of time off upcoming, so I would like to order parts soon. I do have all the tools (router, table saw, jigsaw, etc)...