both would be 12". im having a hard time deciding between the two. i was originally set on the infinitys but now that i work at best buy i get killer discounts on the type-r's. yes ive heard the infinitys get better SQ and i already have infinity kappa speakers in my jeep but am i going to be able to tell a big difference (and i stress big) in SQ from the type-r to the infinity? all feed back is greatly appreciated. i did try searching first but was unable to find anything on this.