There is a channel called the audio analyst, and this guy has got to be the best technician I've ever heard. He's a really smart guy and a superb reviewer of high-end high-quality components. He really seems to know what he's talking about.
By listening to him, you truly appreciate how complex audio issues are. He does a great job and is very gifted at explaining things. A very credible individual.
Yet mysteriously he doesn't have a large following versus the rest of the audio YouTube channels.