solid state vs tubes


has anyone compared a tube amp to a solid state amp and discovered that the diffference sonically between them was undetectable. ? if so what was the tube amp and what was the solid state amp ?

the reason for the question is the basic issue of the ability to distinguish a tube amp from a solid state amp.

this is especially interesting if the components were in production during the 90's , 80's or 70's.

if the components are in current production the probability of such aan occurrence might increasea.

why own a tube amp if there exists a solid state amp that sounds indistinguishable from it ?
mrtennis
Atmasphere, you have still not convinced me that your opinion is a fact. That I have always preferred systems that have amplification driving loads under 8 Ohms to those with amplifiers driving loads over 8 Ohms, leaves me to doubt these assertions. In the end, the final sound is what counts, and at least to my ears, that holds true regardless of whether one uses sensitivity or efficiency as an amplification guide line.
I think Atmasphere's assertion regarding higher ohm speakers is one of those things that is probably accurate in a technical sense but in practice does not always determine what will sound best to an individual.

Still, I do think there is something to it and would love to do the test if there were a way to do it cost effectively and with no risk up front in case it does not pan out for me.
Mapman, I suspect that in narrow technical terms there might be something to it, but I wonder if it would hold up in broader technical terms. More importantly, I agree with you, that in practice it might not matter.
Unsound,

I think speakers are generally voiced to sound a particular way with certain kinds of amps and vice versa. I suspect tweaking the impedance load in any given case would change the sound and present a better opportunity for the right amp to now deliver better sound. I doubt that in practice though this would always necessarily be the end result. Its all about amp/speaker synergy which can be achieved via many combos, warts and all. Providing a technically better playing field as a higher impedance likely does does not necessarily assure better results.
Mapman, I am not convinced that a higher impedance is a technically better playing field. In fact I believe the opposite to be true.