This might be a stupid comment right now, but i´m not afraid of saying the things i´ve learned with a lot of testings in the last couple of years, maybe i´m wrong since i haven´t read this anywhere but the testing showed me that, a sub with a low QTS (0.29) and big VAS(around 2.5 c/f) parameters like this one, should play very nice on a big box,specially if he´s looking to play the lows very nice, that´s where the lovely f3 comes in play, a 1.5 c/f box sounds stupid small for this sub if you ask me, , i mean, that´s what i use for a piece of shit pioneer champion (400 watts sub) on a regular power, and yes, i get loud with them, but once again, i might be wrong so i´m all ears RAY!!!!!!!