Given the money I spent , about 700 bucks, I couldn't have made a better choice in building this sub, I haven't heard any other sub from a manufacturer come closeto the output of this sub, I could literarily blow the windows out of my house , which leads me to the point that a 300w amp is more than enough, save yourself 100 bucks...... Thanks to everyone on this forum steering me in the right direction.... Anybody second guessing themselves about building a sub should take it from me.... If I can do it, someone who has very little woodworking experience and just a good drill and tape measure.....you can do it too.... Save yourself 800+ dollars ...... Thanks again guys.... Ask me anything you guys want to know and I'll do my best to answer them....