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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
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rauliruegas
13,101 posts
 

Dear @fleschler  : " specs and measurements of cables and tweaks which are rare among high end products. "

 

Yes, you are rigth because with cables there is almost no single spec. LFD cables has a very high tag price over 18K and a gentleman asked directly to LFD for some specific cable specs and the manufacturer posted: " the proff is in the lestening ", obviously that LFD has no single spec on it's cables or those specs are so wrong that they just does not disclose it.

 

On the tweacks exist a lot of " sneak oil " items as the fancy capacitors and several other audio items where the manufacturers always say " you can have an improvement/enhance " when there is nothing that can make a real enhance/improvement to the original sound signal, every additional step where the ignal must pass through the best that can do it is to " degrade " the signal but with no true improvement. Could sound different but not better.

 

Anyway, I get your point,

R.

westcoastaudiophile
311 posts
 

@holmz RF EM noise in the house can be detected with RF analyzer

holmz's avatar
holmz
2,328 posts
 

holmz RF EM noise in the house can be detected with RF analyzer

@westcoastaudiophile is there a link for those?  I assumed it is like an o-scope…

Would it make sense to determine if one had RF, or to measure using cable-A and cable-B to see if it was reduced?
Or do people just chuck in the cables.
(Some of the cable seem a bit costly for trail and error work.)

coralkong's avatar
coralkong
681 posts
 

What it boils down to is "soul".

You can’t measure, nor quantify "soul" with a MM or an oscilloscope.

You’ve either got it, or you don’t.

I like my way better.

 

 

 

amir_asr
777 posts
 

@holmz 

I would make my own power before I considered GR Research…

Good for you!  That youtube channel is a sales channel.  Sometimes there is good technical info but at all times, the aim is to sell, sell, and sell.  On the topic of power cables from them, best to stay far, far away.  See my review of his cable:

 

 Not only does it not provide audible benefit, it is pain in the neck to use as well!

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