Well since every post you have made is comparing RF to X....you should just get the RF. RF is expensive, overpriced, but they make very nice amps, some of the best, IMO. I have run at least 20 different RF amps and never once had a problem with any of them. In your mind you think it's better and it will be because you think so. Now if you truly have an open mind, Sundown will do everything the Fosgate will do and will save you some money too. Truth be told I don't understand why people spend so much time debating amps. They all do the same thing. Just because one costs more does not make it better. I am now running what some classify as "budget amps" and I could not be happier with my choices.