why germany? that is where the bose company is located. I spent 3 years station in freidburg, germany. Bose does spend alot on marketing for their product, that goes without saying. But if you want a bose sub then it is there to be had......why are alpine my fav? Alpine has always been my favorite in car audio. All of my other speakers in my car are alpine but the subs. But as far as Subwoofers they dont hold up to the pressure or the air impendence as well as others.
RF subs do out perform most in the category that they belong to.......SUBWOOFERS. they are not designed to do anything more than bass. They definately do not handle voice worth a damn.But they are designed for bass, and that is what they do...
For amps not being made for specific subs? That is incorrect......when a company makes an amp, they intend it to co-enside with a certain speaker. People have been matching amp's with what they want for years, and it will never stop. Nor would i ever suggest it stop..
If you were to call RF.......and ask their design techs, what the amps were designed to be hooked to they will tell you RF subs...as will kenwood, polk audio, pioneer, lanzar, american legacy, and so forth.....Not saying they wont work just as well with other subs,,,,or vise versa....