I found your problem dude. Are you familar with WinISD? It's an interactive speaker design program. Here is a WinISD graph on which I plotted your project. The problem is you have too much power to the sub. The red line is 20.5mm (your driver's Xmax). Your driver exceeds it's Xmax at...
I’m here to get some help building a home audio sub. My budget is about $360. The sub will be going in a room that is about 300-400 sq. ft. I want to do a 200 liter ported enclosure. I will use the sub for movies/games/music. I would like to get a Rhythmik Audio amp, because they can...