I am upgrading my receiver and speakers. I am looking at the Athena F1, C1, B2 for speakers and a Harman Kardon 325 for the receiver. Due to money limitations I can only get either the speakers or receiver now and the other in about 6-8 months. Right now I have a Sony De545 receiver and Sony MB215 bookeslf speakers and matching surrounds/center. Would I be better off getting the speakers first or the receiver? I am thinking if I get the receiver first it will make my current speakers sound better than they do now.