Btw, I respect your opinion and I don’t try to make any offense to any one but only post facts and that’s all.Just before that:
That manufacturer is totally wrong and as usual he never gives/gaves a first hand measured facts that can prove his false information. Exacvtly like today always takes/took another reference that proves nothing here, so useless to give him an answer.The contradiction here is pretty obvious, as are the motives behind it.
You know, in the world exist honest and dishonest people. Make your own judgement because this " episode " is repeated again for the 1,000 time.
I take it then, @rauliruegas that when given the choice of educating yourself, or being stupid, you didn't choose the former.
Instead, you chose to make me wrong for the sake of making yourself seem to look better. In time you might sort out that this technique does not work. But at any time, you will find that redemption is readily available- just read the article I linked, and google the topics I mentioned, and really study them. This is engineering school stuff- if you are fluent with it, you won't appear to be stupid *or* ignorant!
When you say:
"" and it’s brigth, agressive, high dynamic power, with ryhtm, extraordinary at both frequency extremes, sometimes harsh ( listen to a trumpet/horn player at real SPL seated at 3 meters . ). ""You must certainly be aware that tubes have no problems at all reproducing the aggressive nature of a trumpet at close range (and played loudly, as that can make a big difference). In fact everything you mentioned in the above quote (which very much reads as if you are saying that only solid state amps can do) tube amps do easily. You really need to try harder than that.
That’s how at real SPL sounds/performs a good SS electronics designs. Music have all those adjectives and many more: natural brigthness or natural agressivenes or even sometimes harsh sound is how the JC-1's will performs when the recording asked for. It's not because it needs higher feedback levels.
Issue is understaND HOW LIVE music SOUNDS AND WHAT RECORDING MICRO’S PICK-UP AT REAL spl: THAT’S ss THAT’S THE ONLY WAY TO STAY NEARER TO THE RECORDING TRUER TO THE RECORDINGS. tUBES CAN’T DO IT FOR SEVERAL WELL DOCUMENTED REASONS/FACTS.
What you missed in my comments was that I was not advocating tubes, in the same way that I was not advocating typical solid state amps that lack sufficient feedback. They **both** have failings, so you pick your poison: either a bit of euphonic warmth or a harshness and brightness.
OR:
If the amp has **enough** feedback, it will simply be neutral. To do that takes a lot of feedback, and as I mentioned, putting that much feedback on most tube or solid state amps will cause them to oscillate due to the phase margins being exceeded. Now I tried to get you to google that, so you'd know what I was talking about. This is the difference between education and ... well... not.
Now given that any amp will have distortion, the trick is to minimize it, and the way to do that with any amplifier is to simply allow it to drive a load that is higher impedance (and usually less weird phase angles as a result). IOW, simple advice: If you want the most out of your amplifier investment dollar, don't make your amp work hard for a living.
When the amp has an easy job, it makes less distortion. Less distortion means less coloration (warmth or brightness).