I would buy the Acurus ACT-3 with the bass management up-grade it will give you the fexibility you need for the bass cross over and Fantastic sound, in my opinion seperates are better in sound quality, and the Acurus is totally upgradable so future technologies is just a chip away to me that is very important you can always upgrade piece by piece but with a reciever you have to replace the whole thing.
Good Luck!
Good Luck!