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

Nice find, Dave!

I wonder if we'll see that circuit in a headphone amp? :)

Best,

E

Finally got around to reading the article....

Y'know, I can agree with Mr. Pass.  "The beauty lies in the differences'.  That holds true for any and all of the components that we apply to stroke  our personal preferences and situations; your tastes, your listening space, what you listen to, and how...  What I like may abhor you, or nod in general agreement.

"There is only one black and white."  No.

Like the shades of gray between them, even the extremes can be debated.  The validity of that is demonstrated every day in the posts and pages of these forums.   There is not, nor will be, a 'one size fits all'.

'Twas always thus...*S*  I'm good with that.

Think most missed Nelsons real point-  {largely solved on a practical level} amplifiers have existed for decades that can run a loudspeaker reliably affordably and efficiently. 

I guess in terms of sound quality - gains will be marginal, but the means with which to deliver the results will keep developing - Class D and Class T amps being two such examples. My opinion is that with 'improved' technology logic will dictate amps will become:
1. Smaller and
2. More efficient
I think it is arguable that such amps may well have 'room correction' technology built in without the distortion affects of tone controls.
I thought that the likes of Tact/Lyngdorf was going to take over the world so to speak but oddly - as a company - they didn't - although digital amps appear to be the way to go for the majority of householders