I've been on this forum for quite sometime and I figured it was time to start a thread. I recently purchased a car, a 2006 Chevy Trailblazer. I plan on doing a build soon, but transfered my old setup in it for now. I am running a Kx 1200.1 and a set of Powerbass Xtreme 12's @ 1 ohm. I am surprised at how it sounds with just the factory deck hooked up via a Pac line out converter. I do however plan on upgrading the subs and maybe the amp at a later time. (even though I love this amp!) I will be going with 2 Skar VVX 12's (wanna show support since they are based out of Florida). I already have a box design (designed by James or some may know him as jat4011 on youtube check him out) ready to go but ill take my time doing it. The box will measure H 18.25 X W 43 X D 15. I plan on puting 45's in corners for extra bracing and better airflow. The port will be H 16.75" X W 3" X L 30.75" (port will curve in the back of the box). Total volume will be 4.1 cubic feet after displacement. The subs will be firing to the back and placed together on the left aide of box with the port on the right. The box will be made from 3/4 inch mdf. I also plan on doing big 3 along with a D3100 and a 270 amp alternator. The mids and highs will be Rockford 6 1/2's in front and 5 1/4 in the back doors. ( haven't made my mind up on amp yet) I am open to suggestions and input on my plans. I am am still learning and could use some input.