i have a pair of original largers; i upgraded to the megawoofers a few years back. worthwhile, but not a huge improvement. the standard wersion is killer as-is, imo!
if i were presently in the market for subs, i'd beg brian cheney to do the original cabinet wersion for me - i prefer that shape. but, for most folk, & their h-t set-ups, the lowboy shape is prolly more home-friendly...
doug s.