Well, that certainly IS what is claimed. Interestingly, and sadly, none of the reviews I’ve found explain it. I know of no class B circuit which allows an amplifier to operate without significant distortion through the zero V crossing point, which is why I said earlier it couldn’t be. If I was reviewing such an amp I would have made it a point to explain this.FWIW Electro Voice sold a class B with low distortion back in the 1950s. To avoid spikes due to collapse of the magnetic field in the output transformer that transformer was not exposed to DC- just audio. So the amp didn’t have any crossover artifacts. But its tricky and expensive to do, so the idea didn’t catch on.
Nice thread BTW.