Ive heard that w7s got really good sq. But then I used to have 2 mtx 5500 10s off a planet audio 600 watt amp sealed, And I think that them things sounded amazing in sq i loved them. I think it might be because of the planet audio amp. After that I had a mtx 7500 12 ported off a 400 watt punch amp, and the sub sounded horable in the low notes. I just want to know if sealed can make a huge difference or not. And by the way how yall think of my new set up, I got 2 planet audio big bang 12s off a xta600.2 soundstream amp. I mean I think it sounds amazing, But has any of yal had experience with planet audio subs?