Alloy Cone Speakers?

First time i have seen that model sub so have no idea what to expect from them. Specs look pretty good. From what i've seen from other brands that have some kinda alloy cone they have great sound quality to them. That amp looks like a pretty good match for them as long as you keep the gains down a bit. Dont know if you looked but they had box recommendations on that site as well. Personally would go with what they say to put them in. On the components amp, if wanting to save some money take a look at this amp http://www.crutchfield.com/cgi-bin/S-T9B3gnWmwaf/ProdView.asp?s=0&c=3&g=120&I=235USB4085&o=m&a=0&cc=01&avf=N, I just ordered one of these earlier today( bad thing is its on backorder), going by the specs they list plus the ones on the manufacturers site they are a pretty good clean amp. Plus for the price and the 3 yr warranty for that size amp, hard to pass up. I checked around on some other brands and very few are as clean as that one, and all of them cost a hell of alot more for the same size. Just my opinion.