I am simply in awe of this Pioneer receiver. I've cleaned it up and have had it switched into my system for two days now. It sounds fantastic. I have two systems set up in the same room. This Pioneer replaced a Lafayette LR-9090 and I expected it to put that to shame which it does. What I did not expect is that it would best my restored Sansui 2000X in my other system. And I'm a huge fanboy of the 2000X! The Sansui has it's own unique sound signature and I'll never part with it but again wow, this Pioneer is really special. Reading through threads I find no evidence here of damage to the circuit board from that part that tends to overheat or the protection mode engaging prematurely. I've turned it up as loud as I could possible play it in my apartment without issue.