Mainstream Phono Stages Incorporating Premium Branded PCB Parts - Do They Exist?

I appreciate the continued interest in the topic.  Many great ideas and perspectives.  Having done some additional research, I am intrigued by the Greek-designed Lab12 Melto2 tube phono stage.  The circuit design/PCB layout and accompanying components appear impressive.  If anyone has experience using this equipment, please share your thoughts.  There have been many resales over the past year - not sure if that denotes a pattern/trend or simply individuals testing new products and moving on to other priorities.

If the Vendors of the Lab 12 Phon' are actual enthusiasts who bought into the design, it is hard to suggest the circumstances for selling without inquiring.

Usually a Phon' that has proven to the individual using it to be an end game model, does not get put on sale, and circumstances not related to audio may be the reason for needing the sale to happen.

Freidrich Shaefer's ASR Basis Exclusive HV battery powered phono preamp. 

Ifi Audio iPhono3 Black Label uses high quality components from Burr-Brown, TDK and Nichicon. It does sound excellent, I have to say.

https://ifi-audio.com/products/micro-iphono3-bl/