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

@kota1, we are in agreement about Amir's room. What a disaster. My ears are ringing just looking at it. I do respect those speakers though. There are some that ascribe to a view that we can adapt our hearing to complex rooms. Probably that is true, but also probably true only to a degree. I think that is an old view that is being rewritten as more become aware of what good room acoustics can do.

On another topic, after reading this thread, and a comment you made I think I can clarify what Amir was saying about your ARC room correction measurements. I don't know why he didn't just say it instead of being confrontational. In your Arc posts, you show the Red measurement curve, the Black target curve, and the Green corrected curve. I think the point Amir was making without saying it, was that the Green corrected curve is a predicted corrected curve. It is not a measured curve post correction. Arc shows you a prediction of what the curve may look like after correction. I think he was implying you thought that was the actual curve post correction, not a predicted curve post correction.

You can have the best test equipment in the world, but if you don't use it properly you won't get an accurate measurement, like measuring a large dipole panel speaker at the wrong distance.

@thespeakerdude 

@amir_asr lost the measurement throwdown and I am now known in this thread as "king of all measurements".

If you want the crown you must throw down and POST what you got 🙄

@kota1 you must have very long arms. I don't think you will be taking the crown away from Amir any time soon. Big fish, very small pond. No need for the crown for me, I have my own Klippel to play with any time I want. Technically not my own, but close enough.

My post had nothing to do with that though. I was simply pointing out that the green curve is a predicted corrected curve, not the actual measured corrected curve. I am sure as the "king of all measurements" you knew that though.

@thespeakerdude

You forgot to post your FR, this is throw down to get the crown,

you got nothing, as expected.😫

@kota1 is THE:

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