Arny Krueger wrote:

Good high speed analog tape has a brick wall
in the 22-28 KHz range, always did, still does.

Studer B67, 15 ips, -3 dB @ 30 KHz for the first ten years of its life.

This is in no way intended to argue with the rest of your treatise. But
you do keep giving analog tape machine bandwidth slightly short shrift.
g

Now, the TEAC 3340 I was given a while back...

--
ha