Your suggestion was already used in the authors´reply to Leventhal article about the low statistical power (and consequently pointing to the therefore questionable conclusions often drawn from ABX test results) of the typical ABX routine used.
Clearly he meant the term "significance" as synonym for "practical/everyday relevance" and i´d assume that you think in a similar way.
But, also it seems to be reasonable, this conclusion is a "non sequitur" as it was shown by the experiments on inattentional blindness and inattentional deafness. The given evidence leads to the conclusion that it might be often a matter of distraction; if the distraction is sufficiently strong even quite obvious things can remain undetected in a multidimensional evaluation process.
Bigger than the obligation for people _not_ claiming to follow the scientific route...
As humans we are prone to applying "double standards" so we have to keep an eye on ourselves.
For example it happens quite often that somebody complains about "sighted listening" in case of "heard a difference" results while having obviously no problem with "sighted listening" in case of "heard no difference" results.
Its isnt very hard to understand ..... it started with dissatisfaction with the sound of amplifiers... esp solid state ones. A non-designer/mfr can try replacing parts to listen to the affect. When IC Opamps got better, they were also used. Opamp 'rolling' is just as popular as changing to film caps.
But now, we know which opamp's are best/better and which cap dielectric is better. And, as power devices got better and their costs came down, (higher ft etal) they are used.
THx-RNMarsh
The conversations on this forum are very interesting.
- "I feel its warm, tonight !"
- "Proof ?"
- "I feel its warm, tonight !"
- "Proof ?"
With about as much discipline and control.
I would prefer to place all sighted listening as information for later investigation.
I'm happy to be on your ignore list.
Distraction in listening to audio electronics is the visual sense mixing in with aural sense when doing sighted comparison.
How often do you see people posting "heard no difference" in "sighted listening" compared to "heard a difference"? Since you've made the observation, you would know.
More accurately, that's how you feel that the conversations on this forum go.
Since I'm not a native English speaker and i saw you being from the USA i was curious why you don't say "you should know" instead of "you would know", but keep in mind that you're insulting a guy from Belgium...
It's not nice ...can't you just stop?
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It was hard to find Power complementary PNP, at this time, you'r right.
But, i'm sure you know that existed yet some power Planar Epitaxial NPNs, like the BDY 24 etc. (Thompson CSF and others, with a FT of 10MHz, if I remember well ?)
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I think that we are going in the wrong direction. It seems that many people here do not think 'hi end' electronics is necessary and that 'compromise' is very practical.
I therefore suggest that we start looking seriously at the true bargains from China today. Why pay more? It's like finding a source of '2 buck Chuck' (wine), why pay more when most people can't or don't care about the difference?
I have found a number of JC-2 inspired products on various Chinese websites, e-bay, and even Amazon! For $80, you can get a fully wired unit with case. Why not? Most here could not tell any difference, and if they are not using your favorite cap, just change them, and still save plenty. I'm serious. I don't pay retail for my own designs, they are too expensive, even for me. I design for rich guys, primarily, and a few hard core audiophiles who will save up their money to get one of my designs. I would not pay retail for them, but I would not bother to make my own either. Too much work! A good alternative is to buy USED audio equipment. Virtually everything that I use is either used or was given to me. There is no shame in that. I will take my used STAX phones up against almost anything, except a newer pair of STAX. Save both time and money, buy Chinese.
I therefore suggest that we start looking seriously at the true bargains from China today. Why pay more? It's like finding a source of '2 buck Chuck' (wine), why pay more when most people can't or don't care about the difference?
I have found a number of JC-2 inspired products on various Chinese websites, e-bay, and even Amazon! For $80, you can get a fully wired unit with case. Why not? Most here could not tell any difference, and if they are not using your favorite cap, just change them, and still save plenty. I'm serious. I don't pay retail for my own designs, they are too expensive, even for me. I design for rich guys, primarily, and a few hard core audiophiles who will save up their money to get one of my designs. I would not pay retail for them, but I would not bother to make my own either. Too much work! A good alternative is to buy USED audio equipment. Virtually everything that I use is either used or was given to me. There is no shame in that. I will take my used STAX phones up against almost anything, except a newer pair of STAX. Save both time and money, buy Chinese.
I would add that one of the benefits of new Chinese gear of all price levels is that of FG pcb substrate.
Phenolic pcb substrate adds a sonic flavour (and smell) that does not belong and I say good riddance to this toxic waste.
JC, have you listened to Chinese 'clones' of your preamp circuits, and if so how do they compare to the 'real thing' ?.
Dan.
Phenolic pcb substrate adds a sonic flavour (and smell) that does not belong and I say good riddance to this toxic waste.
JC, have you listened to Chinese 'clones' of your preamp circuits, and if so how do they compare to the 'real thing' ?.
Dan.
Well Sir it just happened that the technology evolved a lot in the last 40 years.It's nothing wrong in it.
Believe it or not, but a few months ago, on a Romanian forum we were astonished when a guy who owns good old Accuphase told us publicly that he bought a 50 euros class d ucd 180 kit and that it sounds better than his Accuphase.Everybody was in disbelief .Here's the posting:
Amplif in clasa D cu modul mono Hypex UcD180 - Amplificatoare - ELFORUM - Forumul Electronistilor
He actually says that he likes more the 2a3 valve amp than both solid state amps in the end although Accuphase e 206 is not exactly our average amp...
We have a topic here about a 2.5 dollars class d chip that runs very well too and with small pcb mods might be extremely good.
Why not?
What's wrong about that?
Nothing will change our diy pleasure anyway.Lots of young men build valve amplifiers for fun and pleasure.
If you look into E206 schematic...It looks a lot like Matti Otala, isn't it?
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Dan, "Never look a gift horse in its mouth" or somesuch. No, I have not listened to a JC-2 Chinese clone, but I had one here and it measured very well and was well constructed. Parts? Who cares so long as they measure OK? No, I don't know exactly what they sound like, but I think I will keep my original JC-2, thanks, if I need another volume controlled line amp for some reason.
I think that the E206 looks like a Parasound without input jfets, something I might have made over 50 years ago, (if I had the power fets used in the amp). I don't see any Otala design in it.
Chinese stuff is so cheap it's malpractice NOT to try it and see what you think. There have been a few cases where I was shocked, surprised, and delighted. While spending minimal dollars. I say again, minimal.
What kind of junk still has phenolic PCBs? Certainly nothing remotely high end.
Complementary symmetry (bipolar) was one of my introductions,(1968) Matti did not use it, so far as I know. Perhaps some HK stuff later, used them in some designs, after all, I designed products for them too.
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I've heard of this - this guy has written about it (look for hum, ignore the large volume of electronics writing). He appears to have taken a decent engineer's approach (he's a retired EE prof), and has come to a few conclusions, but it's still mostly a mystery:
http://electronotes.netfirms.com/free.htm
White noise contains 'all' frequencies, and if you look at a narrow frequency band, the volume varies up and down randomly. The ear can actually hear this. If you loop noise from 1/10th second to a few seconds, you can hear it repeat! If it's just "pure noise" one might think there's no difference from one moment to the other, but there is.
There's a buzzphrase for allegedly hearing voices in noise (this is absolutely "Art Bell" stuff, I probably heard something on this very topic on his radio show) , EVP - here's Wikipedia on it:
Electronic voice phenomenon - Wikipedia
I've 'heard' what might have sounded like a vocal syllable in noise, but it's something attributable to the hearing and sound interpretation system of the ear and brain, and not anything paranormal.
The "hum" likewise appears to be in one's mind (though not triggered by a real sound like the EVP thing), but I hesitate to speculate how of if these things are connected.
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