i still have these logitech speakers. i am using a better setup atm($400). i have uninstalled spotify long time ago and i only listend to good mastered music now. the speakers is from a swedish company "dynavoice dm-5" so the bottleneck should be the room. i can hear difference between sampling rates with my current setup(ribbon tweeters).

with the result in the hand it's always easy to say what should have bean done and what shouldn't, model 978 is a great example of that after 2 year delay, i doubt outlaw counted with that when they decided to include stuff like hdmi 1.4a. i don't know about a single prepro or reciever without issues like audio dropout at launch, it might be worth the longer time it took if model 978 is bugfree from start.