This sub is the only sub I've ever purchased, but from hearing friends' systems, I can tell you that this is for sure the cleanest sub I've heard, while still hitting nice and hard.

If only the LPF on my HU was better, I wouldn't have to worry about blowing out the two stock mids I have yet to replace!

*only thing to look out for* make sure the box that you buy has a big enough diameter hole to fit this sub. If you call support, they will tell you that they have a certain box that will fit it. For me it was too late, but trust me, it's easier in the long run to just give them a ring.