Vacceo
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I bought a second hand subwoofer that had a very worn out power cable. When it finally pealed off, I replaced with an old PC cable. It works exactly the same.
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GR Research B24 AC Cord Review
- Thread starter amirm
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@amirm
Did you get to see alpha audio performing the cable tests?
What do you think?
alpha-audio.net
Did you get to see alpha audio performing the cable tests?
What do you think?
Megatest speaker cables - real measurements, samples and blind test!
What a bizarrely intensive, educational and special speaker cable test this has been to do. The aim was to establish a link between measuring and listening.
alpha-audio.net
HarmonicTHD
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Already asked and answered here including the responses from the original authors@amirm
Did you get to see alpha audio performing the cable tests?
What do you think?
Megatest speaker cables - real measurements, samples and blind test!
What a bizarrely intensive, educational and special speaker cable test this has been to do. The aim was to establish a link between measuring and listening.
Loudspeaker cable test and comparison
Dutch online audio site Alpha-audio did an extensive test of loudspeaker cables in the price range around € 900,- (1 cable was more expensive). First they tested all cables and after that a blind listening test was done by 2 other people who didn't see the test results. The one who did the...
www.audiosciencereview.com
D700
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Has anyone A/B tested to see if carbon fiber cable lifters at 6" intervals can improve on the intermodulation distortion of this power cable? I am also considering a flux capacitor that a YouTube guy is selling, he says it polishes the incoming AC current for proper sonic ingestion.
HarmonicTHD
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This is meant satirically, right? (Sorry for asking, one never really knows as one sees all kind of outrageous claims here. )
Good one.
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He he:
FLux capacitor in Hifi!
To exemplify. How often in car forums are there comments like: Now I have seen a video online. How can I increase the performance of my car by adding a flux capacitor! I bought one now! Whereupon slightly tired car engineers / car mechanics explain what a flux capacitor is. It does not occur...
audiosciencereview.com
Actually, it's the total cross-sectional area of the conductor and the length of the conductor that make for a low-resistance cable. The large number of strands makes it flexible and nicer to use, but doesn't impact the resistance (assuming the cross-sectional area and cable length remain constant).
Impressive that they managed to screw up the dimensions of the ground pin. NEMA will happily share the correct dimensions... Oh, well. At least it looks pretty.
It would be interesting to compare with something like this: https://diyaudioprojects.com/Power/diyMains/ I would expect the DIY cable to perform just as well, possibly better than the fancy cable.
Tom
Agree. But the threshold of audibility depends on the SPL (see the Fletcher-Munson equal loudness contours), so the inclusion of the threshold of audibility should be accompanied by a footnote explaining which curve was chosen and why. This could be in the form of a reference to a "here's how we do things at ASR" page.
Tom
Don't be too hard on yourself. Your experience fits squarely with expectancy bias. You expected the better cable to sound better so you perceived it that way. That's not due to a failure of memory of perception in my view. Perception is sensing + brain involvement. And it's impossible to eliminate bias when the brain is involved. So I would argue that you did perceive a difference, but that the difference was not from any difference in the stimulus that reached your ears. This does not mean that you imagined things or were fooled into hearing something that wasn't there. It simply means that you're human.
Tom
It means that someone who buys a fancy power cord with the expectation that it will cause an improvement in sound quality will perceive an improvement when they go and plug in the cord. I believe (based on my understanding of sensing & perception and cognitive psychology) that this person genuinely does perceive an improvement. I think it's important to recognize this.
It just so happens the improvement was not due to a change in the stimulus that reached the persons ears, but rather due to their perception of the stimulus. In my mind this is not a failure of perception but rather a function of the way our perceptive systems work. It underlines that our perceptive system is more complex and more easily swayed than most seem to think.
It sounded to me like @Azathoth was being a bit hard on himself and blamed the fact that he perceived a difference with the fancy cord on having a failing memory, failing perception, or (my extension) failing intelligence. I see this sentiment quite a bit, in particular in "subjective vs objective discussions" and I find it concerning.
Tom
A lot of words for: you imagined it. Imagination can be indistinguishable from reality. Nothing wrong with that. As you said; it’s just human. No need to beat around the bush.
No. Please re-read what I wrote.
Unless you believe that perception and imagination are one and the same.
Tom
In my mind perception is how how your brain models the outside world. That includes various stimuli. It’s a model, so the brain will fill in missing information, interpret things in certain ways, add information where there was none. So yes, imagination plays a huge role in it. Obviously most of this process is not conscious.
It’s really simple: if you saw or headed something that wasn’t physically there, your brain made it up. You imagined it.
I think your view is overly simplistic.
The brain will always fill in the gaps and recognize patterns. That's cognition. That has nothing to do with imagination. I'm sure you're aware that we have no photoreceptors in the part of the eye where the optic nerve exits, but our brains fills in this information so we don't see a black spot there. Is that imagination too then? Or is that a function of how perception works.
Or take the McGurk Effect. Is that a product of imagination too? Or is it a product of perception?
Tom
The brain will always fill in the gaps and recognize patterns. That's cognition. That has nothing to do with imagination. I'm sure you're aware that we have no photoreceptors in the part of the eye where the optic nerve exits, but our brains fills in this information so we don't see a black spot there. Is that imagination too then? Or is that a function of how perception works.
Or take the McGurk Effect. Is that a product of imagination too? Or is it a product of perception?
Tom
No its not. But your imaginagion has big influence on your perception. And thats just a human natural fact.
In that case you have a vastly different definition for the word imagination than I do.
I can imagine myself riding on the back of a dragon. That does not mean that I perceive myself riding on a dragon (or that I believe dragons exist).
Tom
I can imagine myself riding on the back of a dragon. That does not mean that I perceive myself riding on a dragon (or that I believe dragons exist).
Tom
Is the experience of good stereo imaging the product of imagination or the product of perception? I would argue the latter.
Tom
Tom
But i imagined to add some bass to the bass. And it worked perfect, just the wrong channel. And iam sure that even pro mixers can tell you a story about this. That tweak that worked so nice, on the wrong channel. The imaginagion of the change influenced the perception.
Dont think that my definition of imaginagion is so wrong.
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