I would recommend you find a receiver that has pre outs so that in the future your able to add amplification and adequately power those RTI10's. A receiver @500 won't do them justice. Now if you start looking at Yamaha Aventage, Pioneer Elite SC, and Denon 33XX, then you at least know your getting some good juice out of them to power your speakers. As far as a sub goes, I recommend HSU, SVS, Epik, or Outlaw. SVS has some really good subs for 499.99. Good luck.