Im starting to regret joining this forum as no one ever anwsers any questions. Nor does it seem like you know what you are talking about. Audiobahn are not shit. yes they may be a little over rated but there flame q series of subs are **** good. Yes alpine type rs are good also. to be honest which one to get is more a question of power. The r's require half has much power as the flame q's. yes audiobahn is power hungry but they do pund and have pretty good sound quality. and for everyone here dissing them 80 percent of your sound quality is not from the sub it is from the amp.
As far as volfenhags go, They can not touch audibahn or alpin 1 vs 1. But the fact is volfenhags are dirt cheap you can get 4 of them for the price of 1 audiobahn or alpine r or atleast close to it.