Ok, recently moved into a new home and there are three (3) Klipsch R-5650W (Left, Right, and Center) in wall speakers, and two (2) Klipsch CBT-2650 (Rear Surround) in wall speakers. I currently have the Onkyo TX-SR508. I use this system hooked up to my HTPC, PS4, and Fire TV. I plan on TV - 50%, Movies - 35%, and PS4 - 15%. My budget is around $500 and I am looking for a 5.1 receiver with 4K, 3D, wi-fi compatibility. The older 508 I have has some handshaking issues sometimes so I need something that I wont have that issue with. I'm pretty sure that's all the info I can think of. I am not tied to any certain brand, although I know Onkyo has had some quality issues lately. Any help would be appreciated.