Are future improvements in Amp/PreAmps slowing to a crawl?

kosst,
I don't understand the obsession with the scope and analyzer - didn't we learn that the THD measurements did not correlate with how it sounds?

You've cited no measurements.

There is nothing to measure. Take the line stage for example. You see a test tone at 1khz sitting at 0db out and if you look across the spectrum headed north of 1 khz you see flat constant noise around -110db. If you specifically monitor the 2khz frequency you see that it is also just the noise floor. There are no other "bumps" showing up in the spectrum. Total absence of harmonic distortion. This was my initial proof that I could prevent a circuit from generating harmonics by using a phase based countermeasure circuit directly on the music signal.

Whoa! Holy guacamole! Oh, so this îs what happens when a measurement fanatic encounters someone who disagrees with him? Geez, I was under the impression the whole amplifier measurement thing - especially THD - went out the window 40 count em years ago! As well as the bullet headed dude 🌰 from Audio Review or whatever. 

kosst,
I told you that this would be good news for some and bad news for others. You are making my point.