Just want to say how happy. I am I do not regret buying these subs they are all they are cracked up to be. Well worth the money and wait they are everything I've been looking for and then some. They are amazing subs and if your considering a sub from FI do not hesitate. Here's some pics as for a review They drop low when I say low I mean low. Think gut wrenching. I put on the silicon sound system test which goes through cycles and I could not belive what I was feeling and hearing the lower it got the more they shined. I did'nt realize what kinda power I had back there as none of the other subs I've had on that amp have really made me say wow. I mean they were loud but never sounded this good at the higher volumes. I am the happiest I have been with my setup since I got my first system. I love the look I love the performance and just want to say FI Is an outstanding company. I can only imagine how much better they would sound If I put them in a little bit bigger box since mine is a tad smaller then recommended @ 1.5 per sub. It's the biggest box I could fit back there. I wish I could give them more power but I bought them because I wanted a rock solid system without any worries of blowing them and from the workout I've been giving them with my 9.1 i do not doubt they could take more with ease. Makes me want to get another 9.1 and strap them for 2k watts but that involves buying more then just another amp like a HO alt/more wire/and possible another battery as the charging system is at max capacity as it is i'm sure. All in all FI made me fall back in love with car audio and they truely are infinitly amazing. My setup is in my sig if your curious