I currently have RW-12D. It sounds messed up right now though. Like literally something is "flapping" or some type of weird noise coming from the woofer. Doesn't help that EVERYTHING in my fraternity room (so terrible quality) also vibrates, and I know that the box may be weakened due to a woman thinking it was an end table that I placed under my TV. Not sure why she thought that.
I'm not sure whether to salvage the RW-12D, buy another one to replace it (only 300 dollars), or go DIY.
DIY I'd be looking at the 15 inch Ultimax in a 4 cubic foot sealed box (I don't have much building experience so sealed is probably best and easiest), powered by a Crown XLS 1500 (I have one and don't mind buying another Crown XLS because I really like this amplifier and know I can use it past for applications). Also willing to look at other power amps in the 350 dollar range. More power never hurts. The Behringer looks good and I could eventually get 4 subs hooked up to that easily. 1250 at 2 ohms that's quite a lot of power per sub.
Just wondering though how much of an improvement I'd be looking at by getting another RW-12D/replacing the one I have since it sounds messed up, to going DIY with the Ultimax 15 inch in a 4 cubic foot sealed box. How can I do a graph of both of these in WinISD so I can compare the difference?