I used to laugh at the idea of tubes. For someone raised in the digital age of newer-faster-better, I just rejected the idea of tubes-- so retro! Then I got into headphones. I figured this must be the ONLY application in which these no-power 1940's state-of-the-art technology MIGHT have an application given the low power requirements of headphones.
I had been frustrated by 2 Headroom ss amps (Home, MOH old versions). They weren't "musical" to me, yet they performed flawlessly.
So I did an about-face and bought an Earmax Pro just to see and it cleaned the Headroom product's clocks. It sounded "right" to me, not at all colored. I now own a Berning MicroZOTL (way recommended) and I am auditioning a Melos Gold right now-- both tube amps, and both fantastic. Tubes increase my enjoyment factor.
All this time I was a tube man and never knew it. Once you go tubed, you never go back.
markl
P.S. If you go with tubes, you must be prepared to get NOS tubes which require an immense amount of research to get right. This will either engross and enchant you, or frustrate and irritate you.
P.P.S. Tubes are utterly fickle devices, and THEY WEAR OUT. You must replace them over time, and the cost of disappearing NOS tubes is going up and up and up......