Help picking a new receiver
So last week my Onkyo TX-NR818 stopped playing audio and is having some networking issues. I think its related to the HDMI board problems I have read about. In the process of trying to get that repaired under warranty. However planning for the possibility of a many week/month repair hassle, I began looking for replacement a replacement receiver for that one until my 818 is back, at which point I might just use this new receiver in the basement. I bought the 818 because I found a good deal on it in 2012, but it might be overkill for my needs. I'm not sure if I want to go with another Onkyo after all I have read about the HDMI board problems.
I'm looking at some of the Denon models, possible the S700/900 or X1100. I haven't considered other options yet, but open to suggestions. The receiver will be going in my family room which is mainly for watching tv, playing some games and sometimes watching movies or playing music. My speaker setup consists of a 5.1 setup with 2 KEF iQ 90's for the fronts and Polk OWM5's for the rear. Currently my center and sub are just older speakers I had laying around, but I plan to upgrade those in the future, probably the KEF 600c. The room these are in is a larger room, with an 18 ft ceiling and is roughly 20'x18'. Opposite the tv is the kitchen, so we often watch TV while making dinner, so need the sound to carry in there. The 818 has been good, but I generally don't push the volume over half way.
Main feature needs are pretty standard, but do need a second zone that can play an independent source, mainly audio. This is for a set of outdoor speakers on my deck. I loved the Onkyo 818's ability to play a separate input in zone 2 while someone was watching tv inside.
I've been doing research this weekend on new options and trying to determine how much wattage per channel I really need. Eventually, assuming the 818 is repaired, I will probably put this new receiver in the basement which consists of a smaller room area and a 7.1 setup: 2 Infinity Primus 363's for the L/R, and Infinity Primus PC351 center and 4 Polk OWM 3's for the rear (sub choice pending). Right now I am running a Yamaha RX-V671, so this would replace that.
Any thoughts or suggestions? I'm actively researching options, but would prefer not to spend over $500 if thats reasonable. Recognizing that the 818 might have been more than I needed for that room (I think), i'm hoping I can stick below the price point of that equivalent model. I'm not set on Denon, just seems to be a popular brand around here, so I am open to other options.