Everybody knows than Raul prefer Solid State and that's fine. When we're talking about new concepts and new ideas in Solid State amps, i think
First Watt designed by Nelson Pass in USA is worth to try for the owners of high efficiency loudspeaker owners, at least i would like to try (only) if i could find used one for reasonable price.
The fact that we're in 21st century doesn't mean that we have to use only new designed products in audio. Personally i don't care about most of the new stuff when properly designed vintage high-end available 10 times cheaper (turntables, tonearms, cartridges).
I'm fine with new speakers, new amps with nos tubes, and new cables, though.
I don't care about digital because my favorite music recorded in the 70s and sounds great on original pressings (vinyl).Â