Originally Posted by shadyJ
You can always build a more powerful sub than whatever is on the market... if you have the tools and the woodworking skills. Don't forget that many of the subs on the market isn't just slapping a driver in a box and connecting them to a amp. You get a nice finish, you get built-in limiters and equalization, and all the features and connectivity that the ULS has. If you added all that into your DIY project, the costs do mount. This is all neglecting the costs in time as well. The ULS-15 is a bargain if you would rather skip that project. This argument has been done to death against the JL Audio subs too.
But with flat-packs the design work is literally done for you. All you have to do is glue the pieces together, clamp them down, then finish them however you like. Commercial subs aren't the only subs that can have impressive finishes. It takes time and work, but alot of people in DIY enjoy it. You could literally buy every tool you need to build your own box, and still come out under the cost of the ULS-15.
Most subs on the market are just drivers thrown in boxes connected to an amp. They usually have paper veneer finishes and high tunes. The minority of higher quality commercial subs are the one's you're talking about. Where companies take their time to actually design the subwoofers from the driver to the amp and add beautiful finishes.
The iNuke3000dsp would provide tons of power and the ability to eq specifically to your room's response. Rather than getting a pre-eq'd sub, you now can tune it to sound it's best in your room. Throw in some measuring gear and you're still under budget.
I'm not saying the ULS-15 isn't impressive, because it is. I'm just trying to say that I think the ULS-15 isn't mentioned much on here because there are other options that usually come up first. Most people are Ok with a larger sub and aren't space limited, so the ULS-15 is sometimes pushed to the side.