How is recording accuracy not relevant in a discussion of accurate-vs-pleasing? It's largely done on the basis of 'pleasing' whether by the recording and mastering engineers or by the system making guy. I can't fathom how anyone could declare that accurate will always equal pleasing unless your tastes, room and speakers match the ones used by those guys. It's art, not photocopying.
i am one who is not encased in "definitions"........
subjectivist or not, you will know what is enjoyable listening no matter what...
subjectivist or not, you will know what is enjoyable listening no matter what...
What a silly thing to say! Communication breaks down without clear definitions. It's when we start shifting definitions to suit personal interests that we get all the nonsense in this world. This is especially true for some leaders, their lackeys and all other wannabee petty dictators. Too many of us are engaged in exchanging words for realities.
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Don't forget to design an ABX testing rig while you're at it, to see if you can actually hear the difference between these power amps. 😉
I should be close - 60 seconds switch between blameless - leach - or whatever.
I also rely on my builders , some pester me for a certain topology ... but quickly
build and move on with others. They actually will comment on a notable one.
Most of the "classic" topologies are now blurred (less distinguishable) , as I've
pushed them down to PPM territory .
A bigger , louder amp (or one with more gain) will fool the builders , too.
Same amp , but with a "stiffer" power supply will be noticeable at realistic
levels.
OS
Is harmonic profile important?
When I design amp and I can not bring THD at ppm level because of limitation of topology (being simple) or components choice, should I set H2 harmonic higher than H3, H3 harmonic higher than H4, etc?
Is A little bit flavour OK?
When I design amp and I can not bring THD at ppm level because of limitation of topology (being simple) or components choice, should I set H2 harmonic higher than H3, H3 harmonic higher than H4, etc?
Is A little bit flavour OK?
Sure, but they are rare.
Coincident microphone recordings with very linear microphones and no eq/compression have been made.
blumlein records - The Edition
Only you can decide that, its a matter of taste.
A general rule is that harmonics should be lower in level as the harmonics increase, and avoid the higher harmonics altogether. At least this is what people seem to prefer if audible distortion is added.
I agree, I think the important thing in solid-state amp design is to avoid high order nonlinearities. They are subjectively more audible (and not in a nice way either) and also harder to correct with feedback, because the harmonic energy appears at high frequencies and the feedback factor decreases with frequency.
The small signal circuitry in a power amp tends to introduce small amounts of 2nd and 3rd harmonic, which is no big deal. The main source of high order stuff is crossover distortion in the output stage. So I think it is important to try for the broadest and most gradual crossover possible.
The small signal circuitry in a power amp tends to introduce small amounts of 2nd and 3rd harmonic, which is no big deal. The main source of high order stuff is crossover distortion in the output stage. So I think it is important to try for the broadest and most gradual crossover possible.
I posted earlier about H2 and H3. The harmonic profile that is less pleasant depends on the music being played. Each has the potential to add a little richness to the sound individually but both together confuse it slightly. Anything higher I consider music miasma.
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