I'm pretty, no, really, confused about my situation. First of all, I bought a Dayton 10" sub that didn't sound 'good' (will explain), and I returned it and got another one, and it doesn't sound good either. So, either I'm getting some bad Daytons, or I'm more picky. The biggest, most confusing thing to me, is that when I got the first Dayton sub, it sounded good. Really good, and clean. Then it changed, got more rumbly, distorted and clattery on higher LFE levels and also just didn't sound like it was getting enough power. Then I replaced it and the next one sounded the same. I've since replaced my cables, my electrical wiring, and my receiver, and it's still not good. That right there is baffling. But here's the thing. I took the 2nd sub to a parts store, and they plugged it in to their receiver, and they verified that it didn't sound good. It was rattly and not as good as their JBL $130 sub that was next to it. We tried a couple different receivers - same thing. So, I don't know, but I'm trying to return this and figure out what to do. Maybe I just need to upgrade?