All this talk of 10" and 12" subs... Is that kind of displacement really necessary with the small air space of a regular cab? I have a hard time believing that a single 12" sub in a regular cab produces natural sound... By natural, I mean how the artist envisioned their music sounding - well, unless it's some rapper or something...
I can't stand rap music... Do not understand overpowering bass... I just like nice solid and crisp sound.
All that said, here is the box I am building for my regular cab. It will hold four downward firing JL Audio 6w0s...