man I had 4 12" pioneers from about 10 years ago in a 87 trans am.... hit over 140db with that on music all the time.. and I had no back seat...had 300ish watts rms going to each
(just look at my pics from my first posts here).... but I can say now with with amazement that my 12" digital designs sub with my 1500wrms macrom amp blows it away.... I just cant believe it... with my seats down in the back, my nose hair tickles me... Don you made one hell of a box..... all you guys who told me that 1 sub in the right box will blow away 2 or 3... well you are right... DAMN.... and they say my sub will get "louder" as it loosens up.. whaaaaa??? I cant see this being any louder... lol anyways.. I will will pics and a vid soon on the box being made, and the install and other crap..

a big thanks to Rob at forbidden audio, and sikk nation for pointing me into the right direction... and also talking me into buy this sub and amp with all his "big words" lol THANKS!!!!!!!!!!!!!!!!