MB quart RWC 304 + a ebay Thunder MTX 6152. I got the sub/box for around 180...amp for 120 shipped. The sub is INSANE...i compared it to the 12W3 and it just blew it away, it's super clean and crisp. The amp is is 325 RMS at 4 ohm but the sub can be wired to 2 ohm because it's DVC, so in reality you are getting a badass sub being pushed by 650 RMS for under 300 dollars, i'm really happy with this setup. I used to have the same amp with a RF Punch XLC 12" and it didn't even compare.