What is suspect, I have been into Audio for 50 years, and much older than that now, I know how to set up an AV receiver. All 3 AVR's were connected to the same speakers and source material in the same room. All I am saying is the least expensive AVR of the 3 sounds the best in my system, nothing else. Not everything has to be super complicated, it's not rocket science, just stating my opinion of the 3, that's it.