I would really recomend to stay away form audiobahn-- if i am not mistaken, i beleive that they are no longer in bussness-- and IMO, never made a very quality product.
for recomendations, i would need to know your price range, and what you would plan to listen to most on them(every speaker/sub has its own 'sound')
also, just in case you haven't realized it, this is first, and foremost, a car computer forum, and the car audio section is mostly for integrating a car audio into a computer controlled setup. you can find a link to some common car audio websites in the sticky at the top of the page(titled 'have a car audio specific question?').