alpine is incredibly overrated, especially the type r's. Also the only brands you have listed at the top are circuit city, bestbuy brands. Go to a place that specializes in audio and get something that is decent. Audiobahn's are INCREDIBLY overpriced for their performance, unless you're goin to be doin shows, i would avoid it at all costs. I personally love JL audio i run two 8 inch w7s and they are the shit, loud and tight bass