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A challenge to the "measurement" camp

I’ve watched some of his video and I actually agree on some of what he said,
but he seems too confident on his insistence on measurement. For those
who expound on the merits of blind test and measurement, why not turn
the table upside down?

Why not do a blind test of measurement? That is I will supply all the measurement
you want, can you tell me which is a better product?

For example, if I have a set of cable, and a set of measurement for each
individual cable, can you tell me which is the best cable based on measurement
alone? I will supply all the measurement you want.
After all, that is what you’re after right? Objective result and not subjective
listening test.

Fast forward to 8:15 mark where he keeps ranting about listening test
without measurement.  
https://www.youtube.com/watch?v=katmUM-Xelw

By the way, is he getting paid by Belden?  Because he keeps talking about it
and how well it measures.  I've had some BlueJean cables and they can easily
bettered by some decent cables.  
andy2
roberttdid
534 posts
 
The GR Research guy knows his stuff on some things, not on others. Paul from PS .... ya, those are mainly marketing blurbs and miscellaneous ramblings.


When you hook up an expensive power cable to your Power Regenerator, and then claim that it sounds better, the natural inclination of most engineers would be "what did I do wrong in the design of my power regenerator", not "wow this cable is awesome".
mahgister's avatar
mahgister
14,026 posts
 
Any power regenerator will introduce a noise of his own making by the mere presence of his electronic components...His design is the results of a wise trade-off  created by the original designer...

If we introduce this power regenerator in a particular audio system with a noise floor of his own, adding to it a power cable then  modifying this particular trade-off,  would it be unthinkable that a power cable can improve  the original trade-off or destroy it in some case?

It is a question.... I am in no way an engineer, or even a scientist....

Thanks....
roberttdid
534 posts
 
mahgister,

The whole point of a power regenerator is to decouple the output AC from the input AC.  PS is claiming changing the input AC cord significantly changes the sound.


If that is the case, then their device does not do what it is supposed to do.


mahgister's avatar
mahgister
14,026 posts
 
i understand but this decoupling cannot be perfect or absolute no? there is a trade-off implicated in the decoupling itsef....With or without power cord.... The regenerator is always linked to the electrical grid of the house and change the general noise floor of the house and change the particular noise floor of the audio system, no ?

This is my point....

Thanks for your answer....
rixthetrick's avatar
rixthetrick
1,060 posts
 
@roberttdid - so minute differences in resitance and RFI rejection are not indicators of anything that audibly effects a speaker cable, what would you as an engineer say would be measurable indicators to look for in a speaker cable?

Does capacitance have any bearing on sound quality?

I am working on the premise that physics is pretty uniform, and that if we don’t know what to measure and how to measure the most important attributes of for example speaker cables - the mystery exists to be discovered. The answers are there, and in time will be as uncontested as the spherical like shape of the World (oh crap, those darned Flat Earthers).

I am really surprised that people accidentally come across really excellent sounding cable formulas that have no common scientific basis?
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