I would really like to hear some comparisons as well.
I intend to do a TL test on my M2 LVL 4 15s vs. my old 15" XLs. Same power, same electrical setup, same box, just different subs...
My old XLs yielded me 150.1 (outlaw in the kick) from 30-55 hz in 6.2 cubes net.
"When people think you have anger issues, your schedule clears up..."