Tube sound is not about warmth. It's about correct presentation.

There is timbre presentation, there is all spatial aspects of the presentation , there is the general immersiveness impression ...

Today  nothing of that is reserved to tube amplification or to S.S. amplification...

Each tubes amplifier and each S.S. amplifier is a specific case... Now add to that class D ... And any other variation ...Between integrated or amp and pre-amp...

As larsman just said :

What does 'correct presentation' mean? 

Prejudices are not knowledge...

Regarding perceived tube warmth, isn’t this even order harmonics at play?

Now Bob Carver is a legendary audio component designer...

Dont trust my words listen to him at 16 minutes in this video talking about S.S. done right and tubes amplification...

https://www.youtube.com/watch?v=LQ9USqpclWc&t=2s

By the way Sansui made the same thing emulating perfectly their best tubes amplifier in a S.S. design and they did it EXACTLY as a public test behind veil ... I own one of their best S.S. design in the alpha series ... it sound so good i returned my last upgrade after one hour and it was one of the best tube design in the world...

Synergy matter more than tubes versus S.S. a no more meaningful debate for decades now...

The implementatrion of a design matter more than the material components ...

Next thread!

Many things depend on how you define them and label them. Other than that, watever...

I've been using tubes for so long I forget what a solid state amp sounds like.