After sitting on the table for several months, I've finally finished my not-quite maxed out META42. Plug them into the loop out of my Rega Ear, compared a few tracks that I know fairly well. It's quite apparent that the META blows away the Rega. You don't need to have golden ear to tell the differences. At both extremes, the META reproduce the music really well. I'm not quite good in writing, so I'll leave those who is interested to read the details about this amp in the archives.
I want to thank all who devoted their time to made/design the META (I don't want to put names here in case I leave anyone out).