how loud? I'm looking for something to keep up with a pair of ported type r's off 1000 RMS. I'll be ordering the iA7 as my amp so I've got 1200 RMS to work with. I'm not trying to go over 4 cubes and I'm definitely going ported as I listen to a lot of rap and hip hop so i want it to be loud but still sound good while doing it. Let me know if you think this is the sub for me? Thx.**** I wish I had a use for it. I'd buy it from you. Bump for an awesome sub. These thing get very loud and sound good doing it.