Yeah; I have the 500T also. Sweet but just recently I am getting a bad pop on turn-on. It's a pretty reciever though isn't it. I like the sound it has a smooth and more organic tone that is nice to hear. That is the point Nelson makes in his excellent article; makes you want to build it. I am gaining a great respect for his personal philosophy. He really has his head on straight. Not afraid to explore anything in the way of sound without prejudice. And never talks in absolutes.