What I meant was the Sound Quality and the Sound Pressure Level. I tried to edit, but it wasn't going to the words i wanted to? iono lol. I will run the Autotek 1000.1 Amp with a 2 Farad Capacitor with PG 4gauge amp wiring kit. I am aiming for a DECENT SQ sub with DCENT SPL, such as a w6 or w7. I am not in that price range though. Thats why I am asking for personal experiences with the 12'' SSD and 12'' Q series.