Excellent Audio Youtube Channels

I've enjoyed these two Youtube channels on audio, hope you'll enjoy them too!

Hans Beekhuyzen: https://www.youtube.com/channel/UCR4tuhqPppVp-PD0q17sPEA

Paul McGowen: https://www.youtube.com/channel/UC6mzA8J7n0ylf0RnDpj-vrg
for music I like NPR Tiny Desk Studio Concerts......hundreds of them
and a good way to keep up with the modern flow for old men like me,
with some old favorites as well.....
   For equipment , Z reviews for headphones,though I don't headphone all that much. He's got strong,definite opinions.He does some dac reviews also.