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

@roger_paul 
"I know that is hard to swallow but yes that pretty much sums it up.
On several occasions there have been people who after listening to such a system have had tears of joy. Only live music can touch that nerve."
   
News flash: Nothing new! I haven't spent as much as you amp alone costs and I've achieved that. Sounds like a rip-off. 

kosst - its really been great chatting with you but I need to get back to work. We are not getting anywhere with this argument and I'm certainly not going to change my position since I'm the one with the goods.

The difference is that I have the "before and after" - you only have the "before" and have not heard the "after" and so you cannot comment on it with any authority.

I really do wish you the best.

SNAKE OIL. You've got nothing! And you can't PROVE you do. 

The answer to the question of this thread is, Yes!,  As a mater of fact,  the technology is going backward's with the invention of class D.                  However,  company's like Gryphon is pushing the technology of class A.                                           The fact you see class D is a money making scheme,  this is a very cheap implementation,  the profits are astounding to say the least,  Class A is extremely more expensive, the profit margin is far less unless you charge the amount of burying a cheap fix up and resale house!, the good ole day's of class A costing below $30,000 is over, I remember Krell, pass labs, Boulder,  Mark Levinson, Jeff Roland, etc...                              High end audio in general these day's is over priced. 

Let’s get serious for a second. High end amplifier manufacturers really need to do something about toxic transformer-generated magnetic fields (magnetic field countermeasures), directionality of all wire, not only the wire in transformers, but in fuses and the power cord. Also, they need to implement effective EMI/RFI countermeasures, damping for transformers, maybe decouple the transformers entirely, or put them outboard. Whose brilliant idea was it to bolt the things directly to the chassis, anyway? Not too swift. And those capacitors also, need to be damped. Hel-loo! So, the moral of this story: $90K Tenors or $200K Dart Zeels are off my Christmas shopping list until they solve those issues. You can’t just sweep this stuff under the carpet, folks. Hel-ooo! You can paint a turkey different colors but it’s still a turkey. 🦃