What in your mind represents real technological advancement.


To be a real advancement the technology must improve the sound quality. Just extending the bass or the high end can't be call an advancement if it doesn't sound better. If the bass goes " lower " but is muddy or the highs go higher but are " bright and forward and irritating " then that does not improve the listening experience. So the question is what improvements make a speaker more enjoyable to listen to. 
128x128soundsrealaudio
To me the continual refinement of a good design over time, instead of pursuing the latest, greatest notion simply for the pursuit of being first, has the best results. The latter is good for marketing. The former, done properly, results in a more refined solution.

This is not just applicable to audio. I own multiple products from disparate industries, each of which has honed their offerings literally over many iterations and years. Each of them are leaders in their fields.
I think a real advancement is the placement of the renderer in the DAC thus allowing a very simple file to be sent via options such as wifi to be sent to the DAC and then opened and played. The significance it seems would be that the music rendered is not required to be sent over the internet/wifi to the DAC rather simply the data. 

Any thoughts on this?
+1 cd318

While I had a grasp of Ed’s audio accomplishments, I wasn’t aware of his profound success elsewhere. Fun read, thanks for sharing!