he changed his opinion on Pass, calling them midfi
Then the only thing mid-fi are his abilities...
I would never label Pass amps ’mid-fi.’
Note, this is coming from someone who has moved on from Pass and is aware of what one can accomplish as one moves up the amplification price ladder.
It comes down to hard work and time, learning about a product and (importantly) spending time with it, applying that knowledge in setting one’s system up, understanding / maximizing synergies and fitting solutions to one's preferences and goals, etc.