The differences between tube and solid-state lie within their circuits, featuring different components depending on the design. Tube amps work through voltage, needing an output transformer to convert it to the current running throughout the wiring and finally into the speakers.
Solid-states are driven by current from the output devices, so they typically have a single power transformer and silicon transistors – offering a cleaner and more detailed sound overall.
I found a relevant post about this, maybe you would check that
https://integraudio.com/are-tube-amps-worth-money/