I just got this 12-inch Axiom Audio EP500 v2 bad boy shipped to my house this morning - will be upgrading my 10-inch SVS PB10-NSD. I feel like I've been long due for a subwoofer upgrade!
I unpacked it a few minutes ago and will be hooking it up this evening. I report my first impressions in this thread in the next day.
In the meantime, here are couple of pics: