Hello I'm writing this review in response to nicks post. he says they are cheaply built and cant handle "real power" well that's false. I run 2 forte 12s in a 3.5cubic foot box 4 inch aero port in a f-150 extended cab. I'm running them on a crescendo3500 at 2 ohm getting easy 2250watts to them doing around a 144-145db on a lab daily. Its all about tuning of the box and amp any sub can be great when catered to. Don't just be that person who throws double the rms to a sub and expect it to last forever. Just know your equipment and run it as recommended. Thank you for your time and I hope you give these subs a try and don't trust people who leave reviews with no details or reasoning.