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

Pshshsh, who conflates a deer hunt with the OP topic - wild goose chase - anyway!? 😉

soix

8,553 posts

 

Professing those perceptions to be “consistent, clear, and repeatable” for others is, however, either in honest error or purposefully misleading.”

@benanders So, you’re saying I’m not hearing what I’m hearing despite hearing it consistently after multiple back-and-forth comparisons?  

 

That’s definitely not what I “said,” @soix  . Demonstrable difference and perceived difference are not necessarily the same thing. If cables aren’t being demonstrated to have difference (whether through properly arranged listener pref studies or measurements or some option I’m unaware of), then there’s no evidence to support a perception of difference. That doesn’t mean something perceived as being different is not real. It simply means there’s insufficient reason to assume it would apply in any other situation, since so many other variables will change at the same time.

 

It’s really sad some people need studies to tell them what they can and can’t hear.  

 

Well, I tend to think it keeps some things more predictable and interesting. Emotions like sorrow tend to get in the way of objectivity. 😉

 

I’d submit it’s misleading (and arrogant) for you to maintain that using your ears is an error and misleading based on some study somewhere.  


Again, no one here has suggested that. What works for you works for you. But professing what you perceive should apply to others’ perceptions and/or use cases? Better off having some evidence.

 

Pretty sure most people here have been able to discern differences between two products,

 

Absolutely. As aforementioned, can be demonstrable or can be perceived (or can be both), so can be real or can be imagined (cannot be both); this gets muddled when some folks who don’t consider the discrepancies discuss everything they perceive as though it were demonstrable (= evidentially supported).

So like I said, whether or not it’s intentional, that style of presentation can be misleading.

 

but I guess you need to be told what you can hear rather than being able to objectively judge something for yourself.  Sad.  Deaf ears indeed.

 

But professing what you perceive should apply to others’ perceptions and/or use cases? Better off having some evidence.

I don't find that people do that. For the most part I've found that those who think cables make a difference will detail their experience and explain which cables they have liked and why. I don't find that they tell me that my experience will be the same. Those who feel cables are snake oil often do so without trying the cables being discussed and do think that their perception should apply to everyone.

@dwcda so what are you hearing with the transparent cables in your system? Any conclusions?

I designed and built my own A/B/X box with volume matching for testing speakers, but there is no reason that it couldn't be used for testing cables if both sets were connected to the same pair of speakers.