Last time I checked, border patrol uses a tube in their power supply on dacs, and it sounds more "analog" or "tube like" to my ears. It’s one of the better dacs I’ve heard that appeals to my taste.
The Emperor Has No Clothes!!
Read a post the other day where someone characterized a server/streamer as “sweet and tube-like sounding”. It read like a parody. Am thinking of starting a company based on tube rectified power supply for network switch. Crowd funding?