It's a 12" MTX Woofer in a spec box.
MTX X300DP single channel amp
Panasonic HU (It was free)
No name Capacitor
All stock speakers with tweeters wired as well (sounds amazing)
Overall the system pumps. I can shake my head if I crank it.
For the 250$ I spent on the amp sub cap and box it sounds pretty good.