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
If you perceive the peaks as less loud because that is how people hear, that would seem to infer that the dynamic range is affected, at least as perceived, since the peaks do not seem as loud anymore, just as those nasty loudness cues due to negative feedback that you are focused on make you perceive things as louder as you describe.

Mapman, that is true but is not the same as real dynamic range. I don't think it is a good idea to promote a practice of intentionally distorting the loudness cues in order to make something sound louder than it really is. A lot of amps do that though, and is why they sound loud and shouty, as in: "Turn that !@#$%^ down!!"

IOW, if your system has the ability to sound loud, the loudness cues are being distorted. It is possible to build a stereo that does not seem to play loudly, so that even 105 or 110 db is comfortable. I'm a fan of being able to play the system to life-like levels, that is not possible if it also messes with the loudness cues!

IMO/IME in about 90% of the conversations that audiophiles have about dynamics, the word 'distortion' can safely be substituted without changing the meaning of the conversation. It is the reason I avoid using 'dynamics' except in for this context.
Atmas,

Darn, I thought I submitted you on this topic.

Oh well...

So another way to look at it then is the soft clipping approach distorts the loudness cues by reducing them to make them more digestible to human ears.

OK, but real sound in the real world is what it is. There is nothing there to process the loudness cues in a more digestible manner. Not to say that may not be desirable in an amp.

Distortion and dynamics might be used interchangeably in discussion, but they are clearly two different things albeit often related despite what people might say or think.
Mapman, I agree, the problem is this: distortion, in the form of exaggerated 5th, 7th and 9th harmonics (compared to the original sound) **masquerades** as 'dynamics'.

A simple way to tell that a system is lacking this distortion is that you can't tell how loud it is, until you find that you are shouting to talk to someone sitting right beside you.

Oh, and FWIW, soft clipping does not reduce the loudness cues. Its just more likely to not distort them as much. However clipping in any form is to be avoided, so we are talking about how the loudness cues may or may not get distorted when the system is not clipping at all.
I always chuckle when i here the great tube verses S.S. debate . The choice is simple , as long as you haven't made up your mind on one or the other . Bring home and try as many of both as you can , the one that sounds the best is the one . Its not the means its the results that are important to the true music lovers , I thought we all new that by now . MAX
Tmsorosk, this one was a little different as the OP wants a transistor amp that does what a tube amp does, without the hassle of tubes, if I read things right. There was a discussion of some differences between the technologies that you don't see in the usual debates.