lmao how many world championships in spl has a xxx won? none that i know of other RE subs like mt's and sx's have. the l-7 has already won several spl titles. the xxx isnt an spl sub it is a sql sub.You cannot compare the XXX to an L7, the L7 is an everyday woofer, the XXX is a high end SPL sub. The XXX with the right power would bury the L7