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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
kota1
2,706 posts
 

@amir_asr , OK, thanks for sharing. The last time I did the test you just posted was when I auditioned a Mapleshade Digital Interconnect I had for a 30 day trial (about $250). After about 100 hrs of break in I "blind tested" it with my current cable and it was MUCH better so I kept it. The guys at Mapleshade actually insist on customers doing their own "shootouts" and you can always return within 30 days. You can tell they are VERY confident and stand behind their products.

Looking forward to checking out your virtual system with the FR measurements.

kota1
2,706 posts
 

Here is a video of the type of blind test you posted about, not necessarily scientific but could be interesting:

 

westcoastaudiophile
237 posts
 

@millercarbon +100 "it can be very useful to measure certain parameters, in order to quantify progress in design changes, especially changes that might be below the threshold of audibility"

- manufacturing of components includes key measurements to make sure parameters are within commit spec.

fleschler OP
1,922 posts
 

I have to repost this from Pleasurably better, not measurably better forum as it's a hoot.  @chmaiwald wrote: 

This chase for neutrality (or accuracy or however you want to call it) makes me wonder. Audio setups with a strong sonic signature aside, it‘s like investing so much in finding something that has least personality. From the top of my hat I can‘t think of any hobby or whatever gives you pleasure where least personality is something widely accepted as the ultimate goal.

“I went out dining, and let me tell you, that casserole was so accurate. I loved its linearity. I measured it.“

I‘m joking of course, but I think there‘s something to it. 

I responded with:  Great!  Food comparison.  McDonald's burgers measure better than any other fast food burger for consistency.   Despite that, I only eat Angus ground sirloin burgers at Le Petit French restaurant because they taste better to me.  Amir's answer-Le Petit's burgers are too expensive so I am throwing away money when I could have purchased half a dozen McDonald's.  

axo1989
105 posts
 

I’m pleased to see Mr Majidimehr is back. Less so that he is gasping for air. Yoga practice is the key to good breathing I think. Exhale ego, inhale air.

Another possibility: as we know, in audio terminology air is the frequency band at the top of the treble range starting around 12-14 kHz. Older gentlemen can’t hear it so well.

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