Yes, I’m racist. I think that hi-end gurus should be ri-educated.
1) How to build hi-end audio devices.
It’s very important for the popular internet guru to be alone when designing audio amplifiers. Team work isn’t so appreciated from the hi-end people, they will think you had to make compromises. Instead, hi-end audio is all against compromises. A fuse on the mains line makes the amp safer? Let’s remove it, it’s in series with the signal chain. Do I have to spend money to make my amplifier safer, to make my loudspeakers a bit easier to handle, to make my cables pass CE certification (or other equivalent U.S. counterpart)? Nah, better spend money on critical tuning and optimization.
But how to design them? First of all, all the best in audio has already been designed and built, most of all in the ’20s or ’30s. So no need to spend time on designing things. Just cut and paste togheter something that will reasonably work, and you can call yourself an audio designer.