High Sensitivity Speakers that work best with SS

I wonder whether this is why Lou likes the Modwright KWA150Se with his speakers--it delivers the first few watts in Class A before switching over to Class A/B operation. Given the load presented I wonder if the KWA ever leaves Class A when paired with Lou's speakers. This may have something to do with the synergy between Lou and Dan's designs.

Class A works well with an A class design :)

Unsound, no need for "with all due respect", my comment was certainly not meant as a definitive explanation. (I am in no way qualified to do that, I'm a theoretical physicist/spectroscopiest.) However, I am not saying that subsequent watts compromise the first watt, but rather I am wondering whether the designers of powerful ss amps (e.g. 100 - 200 or more watts into 8 ohms) pay always attention to get the first watt right. It is common sense to expect that an apparatus may not necessarily performed optimally when operating at only 0.01 - 0.1 percent of its capacity. Even the smallest perturbation may be significant in that situation.

I hope Atmasphere (or somebody else) can clarify this question of mine.

Paul

NVP, I would suspect that an amp working close to it's maximum capabilities might not necessarily perform optimally. Many high powered amps are biased at the low end towards Class A shifting towards Class AB as the power needs increase, avoiding the onset of clipping.

Unsound, of course "overdriving" an amp is also not good. But I have never suggested that. With normal speakers one most often uses a few watts (e.g 5 watts) for typical listening levels, whereas with very efficient speakers one most often uses between a hundredth and a tenth of a watt.