This is very basic stuff.Which I sorry to say you don’t understand.
If you knew the difference of current ability between complimentary Mosfets v complimentary Bi-Polars into low impedances like the Alexia’s etc etc we wouldn't be having this, and you will see how misguided YOU are.
And as for the title to this thread "High end Class D amps?" here is the only answer so far to that title
https://forum.audiogon.com/posts/2057327.