Hey malibumike, are you sure about those settings ? 50 hz Just quickly glancing at the manual , it seems like a nice reciever.. I think you're reading something wrong..
make sure your klipsch speakers are all set to small...
I have the klipsch quintets and sub 10 with yamaha v665 have all speakers set to small and crossover 120 ..they sound verygood for small/medium rooms..