I see the issue with ABX blind testing


I’ve followed many of the cable discussions over the years with interest. I’ve never tested cables & compared the sound other than when I bought an LFD amp & the vendor said that it was best paired with the LFD power cord. That was $450 US and he offered to ship it to me to try & if I didn’t notice a difference I could send it back. I got it, tried it & sent it back. To me there was no difference at all.

Fast forward to today & I have a new system & the issue of cables arises again. I have Mogami cables made by Take Five Audio in Canada. The speaker wire are Mogami 3104, XLRs are Mogami 2549 & the power cords are Powerline 10 with Furutech connectors. All cables are quite well made and I’ve been using them for about 5 years. The vendor that sold me the new equipment insisted that I needed "better" cables and sent along some Transparent Super speaker & XLR cables to try. If I like them I can pay for them.

In every discussion about cables the question is always asked, why don’t you do an ABX blind test? So I was figuring out how I’d do that. I know the reason few do it. It’s not easy to accomplish. I have no problem having a friend come over & swap cables without telling me what he’s done, whether he swapped any at all etc. But from what I can see the benefit, if there is one, will be most noticeable system wide. In other words, just switching one power cable the way I did before won’t be sufficient for you to tell a difference... again, assuming there is one. So I need my friend to swap power cables for my amp/preamp & streamer, XLR cables from my streamer to my preamp, preamp to amp & speakers cables. That takes a good 5-10 minutes. There is no way my brain is retaining what I previously heard and then comparing it to what I currently hear.

The alternative is to connect all of the new cables, listen for a week or so & then switch back & see if you feel you’re missing anything. But then your brain takes over & your biases will have as much impact as any potential change in sound quality.

So I’m stumped as to how to proceed.

A photo of my new setup. McIntosh MC462, C2700, Pure Fidelity Harmony TT, Lumin T3 & Sonus Faber Amati G5 & Gravis V speakers.

dwcda

Because we can evidently hear differences with many cables we can or we will measure differences ... Thanks for the video audphile1 ...😊

But generally as a factor of S.Q. it is secondary...It is why cables threads are boring for me... 😊

Cool video.  Thanks audphile1 for that.  Perhaps I should spend more time perusing the internet and less time with cognitive regurgitation.  Certainly answered my question about Bode plots.  :)

But see, in this video they listen, take measurements, listen, work to understand how the measurements correlate with what they are hearing.  Contrast that to other videos with measurement radicals who just take a few measurements and then conclude no one can hear a difference.  Hahaha.

Nice video @audphile1 . It is good to know that there are people still interested in digging into why people hear a difference vice stating none is possible. 

soix

8,621 posts

04-20-2024 at 10:13pm 

@benanders Your post is as slanted as it is ineffective in its stated upfront point…

Heyya @soix , was your reply chat GPT-generated? It missed the point of my hypotheticals (= people sometimes perceive what they “want” to, so it’s dubious that audiophiles’ hearing isn’t prone to known human limitations). Oh well, maybe that’s on my writing.

Im not sure I’m clear on how you meant me to interpret the term “measurement” as you applied it in your rebuttal. Seems you haven’t further interest, and that’s fine; otherwise you’re free to read on.

 

@audphile1 that video - strong effort, some audiophiles heed no limits (respect!), except respecting (uh oh, I sense a ‘but’…) the importance of sample size for study of behavior / perception. YouTubers and forum-goers continuing to avoid / dismiss a properly controlled sampling of human listeners for inquiries like this is not in line with methodological reality of how factual info is demonstrated. Is that tendency really due to some audiophiles’ assumption of (1) needing to be skilled / trained at listening to components, or just that (2) they might be inexperienced / untrained about how experiments must be structured? Maybe both are at play?

I respectfully remain doubtful. Not for insisting whether there could be audible differences, but for some audiophiles persistently assuming properly controlled studies haven’t relevance for comparison in hifi. 

That is the common ground x Achilles heel of (1) most / all subjective listening tests and (2) most studies based on device-derived measurements (many lack properly controlled listener preference assessments with which to correlate conclusions). It’s a two-part equation but each “camp” keeps assessing one side only, from what I can tell. Whatever happened to A, B, C it’s easy as 1, 2, 3? As simple as… Doh!

Hence my stance these discrepancies could be resolved.