scientific double blinded cable test

stringreen
I originally thought that a short length of speaker (2 1/2 meter) cable didn't mean that much difference....especially two same lengths of very similar construction. I substituted one kind - thin minimally jacketed silver - with another thin minimally jacketed silver... both were a bi-wired set. The difference was night and day. I don't know why, but that is the truth.

>>>>>The most likely reason is wire directionality. One cable was connected in the right direction, the other in the wrong direction. Case solved.

geoffkait:

I've always been curious about wire directionality. What causes a cable or interconnect to work better in one direction than the other?

All: Please feel free to chime in. Is there any scientific basis for this?

G

It can’t be that difficult. Pharmaceuticals are tested that way. Either something works comparing to placebo or not. And the variables are really complicated there. We bring people to the same room with the same high quality sound system, set of recordings and procedures agreed by a venerable audio society. We have our control cable, placebo, something off the shelf. We compare to it other cables with the same L, R, C. We ask testers to judge the sound reproduction accordingly. Neither experimenters nor testers know whether tested cables or control are used. If the results are near 50/50 then we know that if L, R, C are the same, no other variables matter. Pure physics. Bob Carver did it with amps, surely somebody must have checked it with cables? 
Then of course another study could be done how cable  L, R, C influence people’s judgements. And how expensive, or not, is tuning those three parameters.

It can’t be that difficult. Pharmaceuticals are tested that way. Either something works comparing to placebo or not. And the variables are really complicated there. We bring people to the same room with the same high quality sound system, set of recordings and procedures agreed by a venerable audio society. We have our control cable, placebo, something off the shelf. We compare to it other cables with the same L, R, C. We ask testers to judge the sound reproduction accordingly. Neither experimenters nor testers know whether tested cables or control are used. If the results are near 50/50 then we know that if L, R, C are the same, no other variables matter. Pure physics. Bob Carver did it with amps, surely somebody must have checked it with cables? 
Then of course another study could be done how cable  L, R, C influence people’s judgements. And how expensive, or not, is tuning those three parameters.

There are s lot of factors, and I have done Test a with 5-6 in the room and with 
My high quality preamp, amp digital and seperste power dupply and  goid power 
Conditioner.   Never mind $10.
Try a $200  interconnect , speaker cable , snd power cords vs a $1,000
Any credible cable will be easy . K tried blue jeans monster even lower model of same brand,  where I had No idea when switch box was used ,custom built 
All connectors and internal connections the same, plus I owned a store and had many cables to compare to once runin.  Soundstage is bigger deeper imahubg is much more real  as well as image focus and Bass. If you can tell then dome thing 
Is very wrong in your system or you have problems with your  ears.