Well their amps are OK. If you are looking at these subs they are enormous. They are a badd ass sub with some bad ass bass. If you have the right amp for them. They handle up to 1800 watts, so if you have a tiny amp don't bother. I have heard these at a couple of DB Drag shows, and the people who have them are posted good numbers. I am currently looking to see if I beat the internet price. I will let you know when I find out
