a sge gentlemen named victor khomenko from BAT informed me after he introduced Bat's first solid state amp that in spite of his best efforts, he could not create a tube amp which was indistinguishable from the sound of his tube designs.
after careful listening the presence of a solid state amp is evident.
it is interesting to try to find a solid state amp which has the "warmth" of a tube amp, if one ceepts the premise that tube and solid state designs sound different.
i have personally listened to numerous soild state designs.
none of them resemble the sound of a vintage tube amp.
if one is referring to amps in production in 2006, i am not aware of any amplifiers--tube or solid state, with power rating excceding 75 watts which sound warm.