Sweet!I broke something in the box. Thinking a window brace. Terrible rattle above 40hz. Also thinking about cutting down the port to raise tuning. I'm tuned to 28hz and it will play 20hz full tilt no problem and moves alot of air but I don't listen to music that low. Lowest songs I play are around 26hz.
Other than that I have been beating the hell out of these cheap subs and they have been very impressive.
Alternator has been fantastic.
40ah Yinlong has been fantastic. So glad I went lithium.