Very good posts... Thanks Bolong and gdaddy1
But you miss or forget the "dog which did not barked" in the audio conditioning market...
The Insane World of High End Audio! Is it All a Scam?
This 15 minutes of youtube video by "cheapaudioman" say a lot and hide a lot...
He review low cost products ...
His analysis of audiophiles world here seems fair to me...
But nowhere in all his videos and in this one he mention "acoustics" as the basis of audio hobby, the anker of any system and gear piece evaluation and satisfaction...
He always talk about the gear... Probably acoustics for him as for most is only acoustics panels purchase...
My point is not that the audio world of audiophile is a scam with scammers...
Not at all.
It is ignorance of what is acoustics basics that makes people victim of their own decisions and a potential prey for honest or dishonest sellers..