Let me the first to rate this sub. I have 4 12"XT series in my expo with two 1200 Concept mono block amps pushing them in a custom box. I took my system to get measured and I hit 159.8db and it was running of my expo battery. Not many people know about this kind of brand so if you are looking to get serious bass and not make a hole in your wallet I strongely recomend this brand.
I had this sub connected to a 900 watt concept mono-block amp inside a dual ported box and at 50% power the wind it created Literally blew my hair around if the seats where down. Its super clean pounding with no feedback. I would recommend this sub with a concept amp to ANYONE seeking some serious bass.
I have one of these runnning off a 1200 watt Sony Xplod amp and I hit 169.3dB on the dash. next to my old Funky Pups, this is the best sub on the planet. Though I will admit that I am using gold plated terminals that are probably adding at least another 20 deebeez!
