i built this in my kitchen lol, 2 polk audio DB 10's and 2 fusion powerplant 10's 2 crunch 1000 watt amps 1 on 1 ohm and the other 4ohm. 4 goes to the polk and 1 goes to the fusions. and 1 1farad cap. garage was full and it was raining and i wanted to bump so i made it. the box is actually only a 12x12 just has a full face. i plan on changing it up soon though. hit 143.8db in a bass comp in redding, recently blew one amp (the 1ohm) so i have to change it out soon. lemme know what you think