@ Auxinput, thanks for your thoughtful input. It seems there are several manufacturers bringing to market new/updated processors for 2018. I was going to settle for the Foundation 4k despite it's shortcomings and I'm glad I waited because there are some good candidates that will be available in the coming months; If anyone has experience/insight I'd appreciate you sharing:
NAD M17 v2
EMOTIVA RMC 1
Indy Audio Labs ACT 4
NAD M17 v2
EMOTIVA RMC 1
Indy Audio Labs ACT 4