Moving this to Modern Day Hi Fi, where it is a better fit. I have Bel Canto M300 power amps, and I love them - best amps I've heard. I've also listened to some others, and had the Winsome Mouse Amp here to try (do a search, there's a thread on it). I think that this technology is great in its best implementations to date, and I think that manufacturers are still relatively early on the learning curve. Even better, I could actually see the decline in our electric bill.