@jjss49 I tried to explain my definition for it in a previous post in this thread... sorry you feel that way...
I would NOT consider these brands boutique, just my opinion. Examples
Yamaha, Marantz, Technics, Rega, Cambridge, NAD, McIntosh, or anything made in China, etc....
Another request not to include any ESS/AKM based DACs.
This is just my personal preference. Hope that helps a a little.

