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

@stevecham 

Zero "velocity distortion" is an oxymoron. Just as there is no net movement of air molecules in the propogation of soundwaves, so too there is no net movement of electrons in the propogation of electrical signals in audio circuits.

Very good - when you get a chance please have a look at my white paper where I describe among other things how the air closest to the violin is being disturbed by the sound vibrations coming from the violin (strings). Adjacent air molecules are passing the entire sound of the violin as a wave. What we hear with our ears is the influence of this disturbance flowing as a wave through air.
The speed or velocity at which the wave travels is around 750 mph.
The original air molecules have not left the stage they are still at the violin.

Zero "velocity distortion" is an oxymoron

The velocity of the air medium is zero. In order to successfully amplify a music signal that is "traversing" as a flowing wave, you must maintain a constant velocity (neither faster or slower than 750 mph).

Changes in the playback speed of the music signal generates harmonics.
Air never alters the speed of the traversing sound waves - neither should the amplifier. If you can stabilize the velocity of the amplifier you have simulated that property of air. This is readily recognized by the brain.

kosst,

Apparently you've been at this gig for years judging by the guy who offered to take a listen to your gear who wasn't overly impressed the last time he heard it.

Its true - of course that was ten years ago. A lot of progress including a few breakthroughs have occurred since then. Do you know how many large corporations started in the garage of the founder? Bill Gates, Steve Jobs, Hewlett Packard - they all had to start somewhere. Being on the same path - I feel like I'm in good company. The trick is that you have to make progress otherwise technology WILL slow to a crawl.