Nothing short of impressive.
Crutchfield Customer Review (What's this?)
Amazing subwoofer. For such a small box, this thing really hits. I wanted something small and light so I could remove it easily to use the cargo space in my hatch. I went with a 12 over a 10 because I thought the flat cone and small box would give me a little less output. Almost wishing I had gone with the 10. The output is simply amazing.
Pros: Small box. Powerful bass.
Cons: Needs quite a bit of power for a single sub.