I heard a lot of grainy sound tube PP amps, mostly those with cheapest capacitors and resistors.
What does that have to do with audio, especially your "More than a decade ago I concluded that even if you cannot differentiate 1% from 2% in an ABX, it doesn't mean that it doesn't affect you."?
BTW, I did double blind taste test of Coke and Pepsi years ago. I allowed me to focus solely on the taste. You should try it if you haven't.
Can you name some of them in the industry and the type of measurements they do?
What audible soundwaves in audio electronics have not been proven?
Can you quote things that I always ask for evidence?
I guess they where not the best choice for audio applications. For instance, electrolytics can have various roll winding density and electro-mechanical vibrational response to pulse signals.
modern electrolytics can take quite a beating with AC signals.
quite a lot of good sounding amp company that use big caps in the output of the class A transistor stage.
quite a lot of good sounding amp company that use big caps in the output of the class A transistor stage.
Some modern electrolytics are of trash quality, but they are very much cheaper than good ones. Some manufacturers offer nice looking and powerful tube PP amps for 600-800usd. How do you think, would it be possible with Black Gates or Elna Cerafine?
johnego,
No sense responding to sea-lioning by Mr.Harmonics. Likes to bait the unwary into his standard debating game, IMHO.
No sense responding to sea-lioning by Mr.Harmonics. Likes to bait the unwary into his standard debating game, IMHO.
(My Personal Declaration of Independence included). A contemporary dilemma: why learn in the hard way if you can aquire instant knowledge conveniently by messing around with simulation software? Simulation data do not provide knowledge. Moreover, learning does not teach understanding. The language of mathematics cannot build a connection to anything external, neither to the material world, nor to sense perception. It represents nothing but itself. Nor can it prove itself. I am extremely suspicious about widely held opinions. Psychological groupthink is a dangerous form of religion that can turn into mass hysteria. Groupthink rather implies lack of thinking. Following (predefined mathematical) rules eliminates thinking. Only dead fish go with the flow. It is easier to believe than to learn or think. It is hard to relinquish a precious faith. "Many people would rather die than think; in fact, most do." - Bertrand Russell "Blind commitment to a theory is not an intellectual virtue: it is an intellectual crime." - I. Lakatos “The many are base, while the few are noble.” - Heraclitus “What people believe prevails over the truth.“ - Sophocles "The truth cannot be decided by a majority vote." - Democritus “Wrong does not cease to be wrong because the majority share in it.” - Leo Tolstoy Popular culture disguised as science makes me feel sick. I don`t trust widely held opinions.
A lot? At present? I don't think i can even come up with five names. As for good sounding...
Hehehe. Don't worry, I'm far from being unwary. Actually, I knew what his posts were long before he posted it (that's why some friends thought i'm a psychic). And I'm not playing game or even 'debating'. 🙂
Heed Audio – Obelisk family
many others too.
As for myself, I NEVER heard a bad sounding resistor or capacitor.
I only noticed that I could hear a distinct difference with carbon resistors but thats it.
Parts are not what makes an amplifier, imo for tube amps the output transformer is the major problem.
clean or grainy sound are both bad.
there need to be separation, ineligibility of voices, flow, rhythm, bass, highs, speed, softness, expression, attack, sustain and decay, while tone is maintained.
Any amp which eclipses one of the above has defects.
The major quality factor to judge a system is how different recordings can sound from one another.
Metal film resistors and electrolytic capacitors have a poor frequency response, but the screeching violin syndrome is mainly caused by saturated transistors, not by the ear, not by the brain and not by something subtle. The keywords are amplification factor, choice of devices, topology, biasing, energy level, circuit complexity, power supply quality. There’s no need for spiritualism.
These amps do not even fit your own definition above as they are not class A.
My point is that such amps make for a tiny segment, as most listeners prefer a different sonic presentation. The inherent dc protection is not to be sneered at and makes them useful as dedicated tweeter amps where the coupling cap is a part of the crossover.
I would not think this is "grain" in the sense discussed in this thread.
It's either there isn't anything to do, or you cannot see the connection yet.
Interesting. Did you pass the test? I haven't tried because I think there's bigger difference between batches of the same beverage. New batch will taste very good. When the carbonate/soda escapes the taste is less good, more sour, sweeter. The comparison should at least be using the aluminum can as I think it can retain the original taste longer than plastic or glass bottle. But I think there's big difference because with Pepsi i have never experienced the addiction.
It is not what they do. It is what they don't do.
How about evidence that I have measurement that shows audible difference not shown in usual measurements?
Cool. But it might depend on what is meant with 'clean'. Indeed in real life, I will cringe when i perceive 'clean' and 'smooth' sound. Something must be wrong when the sound is perceived that way.
What!!? You mention ALL of the quality factors and expect those to be exist simultaneously in a single amp?? You can mention lots of good amps while I can't even tho I have built more than a thousand amps?
I know there's only one amp that sound like your description, my best amp. Every time I compare, the more I realize it is true.
and why so?
they are class A
it is a output (electrolytic) cap coupled amplifier. which sounds perfectly well.
The reason is not for DC protection, it is to remove the problems with all transistor amps topologies which are DC coupled
Ah, the mystery amp.What!!? You mention ALL of the quality factors and expect those to be exist simultaneously in a single amp?? You can mention lots of good amps while I can't even tho I have built more than a thousand amps?
I know there's only one amp that sound like your description, my best amp. Every time I compare, the more I realize it is true.
These kind of test criteria can be nothing more than thought experiements - great for passing the time on forums but listening for them are meaningless in real life.
How can you know if any of these factors are present in the music? Either from the live enviroment in general, present at the point the mics were placed, present at the electrical side of the mic, present at the pre-amp, at the mixing desk, present after creative decisions were made, present at the mastering stage, present after the mastering, present at the commitment to media, or present at the media replay stage...? Etc etc etc and there are tens of different kinds of amplifier circuits in place all throughout the recording to replay chain possibly imparting sonic character and influencing choices made further along the chain.
Recorded music is one long (but subtle) chinese whisper in terms of sound quality.