I have Klipsch Synergy SF3 floor speakers and Synergy center and rear speakers along with a sub woofer. Our left and right floor speakers are 8 Ohms and 100 watts. The rear speakers are 8 Ohms and 50 watt. We need a new 5.1 surround sound receiver and need help in knowing what would be a good match for these speakers. Is there any in the range of $300? Appreciate any help you can give me. Thanks.