I had no idea how difficult (and fun) this was going to be. Pretty much I just want a cab that has earth trembling low end that can handle loads of distortion but also have a clean sound at high volumes. What combination of speakers will work best with this? Im considering a 2x15 2x10 in one unit. Or perhaps a 1x15 4x12 in one unit. Whats the difference in sound when it comes to ported or sealed? Like I mention I want this to be loud and able to bring down houses. Suggestion on wattage of speakers that can handle immense volume? Have a GK 700rb now, but will probable get an SVT VR or CL soon and I want to be able to bury the volume knobs if need be. Thanks for any help or suggestions.