Its indeed very strange that they dont make technical details available.. on the other hand.. neither does a car manufacturer..
That’s a good point.. maybe there’s the need to make a distinction between the signal and the sound.. I suppose different DAC’s and/or amps threat the signal differently so this in turn creates a different sound.. but whether different is better.. that’s another question and whether more expensive gear - in general - equate to more musical, more transparant.. That’s something I honestly don’t know..
From albeit limited experience I can say that in some cases at least there is a hughe difference between a 2-3k speaker and an 8k speaker.
A few months ago I listened to someone’s system costing around 150k.. He had the system set up in an apartment and always had to play it really low volume..
It didn’t sound bad but in that case ( apartment ) it’s just a waste of money.. maybe also in other instances but big speakers in general cost much more than small speakers.
He was rambling about only playing from CD because streaming wasn’t up to his standards.. when I asked why… He said : “well those data centres they pollute the signal” to which. I replied : “ how can you pollute bits and bytes ??? “ let’s say he didn’t know what to say anymore.. he also had his speaker cables up from the ground..
I don’t believe in all that crap and some people really seem nuts BUT it’s a bit too cynical to call a whole industry basically snake oil.. no ?
PS Just as speakers are mechanical so are DAC’s and AMP’s ( just to a lesser degree )