Well that sure is a wealth of info. It almost reminds me of those nightmare Bose hate agenda threads. Didn't mean to start a rant. Luckily I can take the amp home for a demo. If I like it I'll keep it, if not I'll just return it. I do have an Onkyo M504 amp sitting here to compare it with. Certainly not a great amp, but not the worst I ever heard either. That should give me some kind of reference. The M504 has a rubber low end, but the mids and highs are respectable. I wish I had some really good high end amp to compare it to, but I'm not that fortunate. I know there are real differences between amps I have heard them myself. I'm just curious what the difference between these Pro and even average consumer amps really are, because I have heard people say they can't hold a candle to an average consumer amp. I don't believe that right now. It's like some of these Bose 901 rants, people actually try and convince other people that $50.00 speakers sound better. Well I have heard both and that is just a plain Embarrassing comment. My speakers are the Polk LSI/25's.