I want: Louder than my (punch) HX2, cleaner, more accurate...off 600 watts?

Title explains it all.

I've got 600 watts at 2-ohms to play with, I'm currently running a 15" RF Punch HX2, in 3 cubes tuned to 30hz.

I enjoy how it sounds, but like the rest of you, I enjoy switching my gear every other week, and I'm never truly satisfied with anything. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Lets see what ya'll come up with. //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif