Would you guys consider the alternative of changing the Klipsch RP-600M speakers for Edifier S3000PRO and forget the receiver?
That Edifier model has been highly praised.
That's pretty much a completely different direction. What gear do you use aside from the receiver now for content? How would you integrate a sub?
As to receiver, why do you need a new receiver right now? You don't even have a full set of speakers yet. I tend to just advise to get an avr based on the features you want at a price you want to pay. That said I have several avrs, two Denons, an Onkyo and a Sony (all in use in various rooms). I'd consider a Yamaha down the line if the price/feature set worked out but until I go Atmos and/or 4k, not in the market.