Brent Jesse rebirth?

@hilde45 Yes. If there was a robust manufacturing of the SIT transistors, not just power transistors but also signal transistors, we'd have seen tubes vanish long ago as SITs have triode linearity and even soft clipping. 

Fortunately class D has come far enough that it can do quite well when compared to a good class A tube amp. Or class A solid state for that matter. 

Just read this on the PSVANE page:

"PSVANE constantly pursues the ultimate fusion and refinement of musical art and industrial craftsmanship. We infuse our profound understanding of music and creative artistic expression into the design and manufacture of each vacuum tube, as these tubes are no longer mere industrial products, but true conveyors of musical artistry. To achieve this, we have built the world's largest and most specialized vacuum tube production line. Over ten senior engineers, each with more than 30 years of experience in the vacuum tube and audio industry, alongside over 300 producers, deliver 1.6 million high-quality vacuum tubes to the world each year, crafting the sound of excellence."

So, maybe tubes are dying, but 1.6 million give me comfort the supply might easily outlast my needs.

After all, our sun goes out in about 5 billion years, too, and that will definitely impact the tube supply.

Back in the 1990s, they said that vinyl playback is dead.  In the mid-2000’s, it was all about peak oil ;-)

None of this is to argue that solid state can be done right.  It takes more talent to do so however, and definitely separates the men (designers) from the boys.

... Thom @ Galibier

@hilde45 ​​@atmasphere I second your experiences and thoughts. I have four tube amps and three Nelson pass designed first watt amps and I enjoy them all equally. fascinating for me to hear that you think the same.

ps-I also like PSVANE tubes. I think between them and JJ we will be fine. their customer service has been flawless in my experience.

@bruce19 Quite the collection. I'm not yet understanding why Class AB, for example, cannot be implemented well enough to make Class D just another option. I've heard some darn good AB amps and only a couple D amps that sounded decent. Of course, limited experience, small sample side, so take what I'm saying with a grain of salt. But AB amps can have tone, grip, and energy efficiency, so I don't quite see why they'd be going anywhere or not improving.