Blind Power Cord Test & results

Quad made a very unique device for testing componentry in a direct A vs B mode, but it doesn't work like a typical ABX type box. This device actually allows you to insert another preamp or amp in series with your existing system and switch it in and out, either in a controlled fashion for blind testing or at random, for double blind testing. This allows one to see whether the addition of another component alters the performance of the system, in what way it alters it, how stable the circuitry is as the system is changed, if the differences are both audible and repeatable, etc... From what i understand, there were only three of these devices made. I'm been working on picking one of these up for some time, it's just a matter of hooking up with the owner of this item. Sean
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Yes, A/B comparisons are nonsense. That's why researchers studying hearing--in academia, in telecom, and even in audio--use A/B comparisons. They are trying to sabotage their own research and ensure that they will come up with meaningless results. But they're just professionals. We amateurs know better.

Both long term listening and A/B comparisons are an attempt to decide if there is a difference and if that change is worth implementing on a permanent basis. For those who don't trust themselves or NEED A/B testing (for whatever reason), I say go for it.

I always know what is being changed because I do my own testing, usually with a group of friends who vote on the results.

Many times the outcome is not what any of us expected, so the learning process remains intact and we all evolve our systems based on priority and what we can afford.

The topic of A/B is banned at Audio Asylum and I understand why. These discussions (particularly blind A/B discussions), typically follow the same evolution as this thread. Pointless arguments that do nothing to improve our systems.

Albertporter...As I am sure you know, there is another explanation for why audiophiles dislike A vs B, and why it is banned at AA.

Well, since it is easy to determine what differences are audible in cables, whether you use A/B, long term listening, or whatever, then use whatever method you want to, and get the cables you want.

What is so hard about this?

I never have any difficulty hearing the differences, whether I'm looking, or blind, or otherwise. It's simple. Why people make such a big deal about this is beyond me. There's nothing difficult about it. If a difference is heard, then there is a difference. If the difference isn't much, or doesn't seem to justify the price difference, then don't buy it. Is this too hard to understand?

If you like blind tests, then use them. If you like long term listening tests, then use them. However, I would caution that most cables DO have a break-in period(whether anyone wants to admit it or not, and it is scientifically based and measureable, due at least to dielectric changes), and the cables should be allowed to have some time on them to make an honest decision. My favorite method is to take some time in listening so that the cable has at least 200 hours of break-in time. Then while listening to the same material, I take notes of likes and dislikes. I then go back to the reference set of cables and allow them to settle in and compare notes. Time will tell.

Have fun and enjoy your cables in your system.