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Nearly all manufacturers do not advertise/exhibit their product measurements? Why?

After my Audio Science Review review forum, it became apparent that nearly the only way one can determine the measurements of an audio product is wait for a review on line or in a publication.  Most equipment is never reviewed or is given a subjective analysis rather than a measurement oriented review.  One would think that manufacturers used tests and measurements to design and construct their products. 

Manufacturers routinely give the performance characteristics of their products as Specifications.  Those are not test measurements.

I searched the Revel speaker site for measurements of any of their speakers and could not find any.  Revels are universally lauded for their exceptional reviewed measurements.  Lack of published manufacturer measurements is true for nearly every speaker manufacturer I've searched for on line, perhaps several hundred.   Same is true for amps, pre-amps, DACs, transports, turntables, well you get the picture.  Do they have something to hide?   I doubt the good quality products have anything to hide but poor quality products do.  

ASR prides itself in providing "true" measurements that will aid in purchase decisions.   Why don't the manufacturers provide these measurements so that reviewers can test if they are truthful or not?

Then there are the cables and tweaks for which I suspect that there are inadequate tests available to measure sonically perceived differences but which objectivists believe don't exist or are "snake oil."  

Well, please chime in if you have some illuminating thoughts on the subject.   

I would have loved to see manufacturers measurements on my equipment and especially those that I rejected.  

fleschler
amir_asr
623 posts
 

@coralkong 

"Then you got called out on GR’s channel (in the end......by name)."

Of course he does.  I point out when that his products don't perform with an array of tests.  Such as that cable that barely functions as a power cable.  While I have praised some of his products, he does produce some really, really bad ones:

 

He relies on his viewers knowing less about audio than him. Don't be that viewer....

amir_asr
623 posts
 

@fleschler 

As a beta tester for GroverHuffman cables, we have tried half a dozen Furutech A/C & IEC plugs over several decades.  We found that the more expensive ends tended to be brighter sounder with higher resolution and the lower end plugs maintain more body.  After trying many plugs from other companies, Grover found a Taiwan all copper plug that had good grip, excellent build qualities, a neutral sound resulting in great body and adequately high resolution to use with his power cables.  They cost less but sound (or lack of sound) great. 

So where are the measurements for that which you said in your OP products should come with?  Quoting you:

One would think that manufacturers used tests and measurements to design and construct their products. 

 

amir_asr
623 posts
 

I put the first one on the amp. It replaced a similarly priced well regarded cable. No contest. More air, better separation, more dynamic.

Why is it that all these tweaks always add "air?"  I mean if this were a tire, by now it would be blowing up with all that air pumped into it!!! 😁

And why did they build an air-less system to start before this tweak?  Did the designers of his system really forgot to put air in them?  It needed a new AC cable to put the air back in?

I mean the guy builds a half a million dollar system and then makes another tweak.  Bam!  The system now has more air.  Really?  Half a million dollar didn't get all the air you ever needed or wanted?

And what if the original music didn't have air in it to begin with?  Isn't it now full of air that doesn't belong there?

Or maybe, and I am just spit balling here, that the way audiophiles do listening tests with their eyes is wrong.  Just do the darn test blind.  Test a dozen times and see if you can tell the tweak has done anything.  Don't confuse people with these false conclusions.  

 

amir_asr
623 posts
 

@dabel 

@amir_asr, any chance that Ranch invite to Sisters OR. happened some years ago. 

Steve's offer of visit was very kind.  But post my review, I am not sure the invite was still good.  :)

Seriously, we used to go to Sisters for quilt festival which my wife loved to attend.  Covid put a halt in that so we haven't been that way anymore.

kota1
2,706 posts
 

@amir_asr Or maybe, and I am just spit balling here,

Yes, you are

that the way audiophiles do listening tests with their eyes is wrong. Just do the darn test blind.

This is only true in ASR world where you expect someone buying a cable to have a panel of trained listeners and the proper testing conditions for a blind test. Good luck with that, you don’t even do proper blind testing on ASR and then want to throw spitballs at our members.... no.

Test a dozen times and see if you can tell the tweak has done anything. Don’t confuse people with these false conclusions.

You first :) Post your system in your system profile along with your in room frequency response graph and components. If you did double blind testing on any component you purchased please share, thanks.

 

Here is the link to the virtual systems page:

 

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