Why high-end cable manufacturers don't post measurements?

And spoil the SURPRISE?????

You must be joking,of course...

Cheers!

Mr. glupson

We had a general, who later became a minister. His name was Moshe Dayan. He had a patch on one eye. It was a joke that one day he drove his car, he saw a nice lady at the road side and blinked to her.He ended up in the ditch.
You are one eye folded, and when it get's out of your league, you close your other eye?
No, not only #0 awg.
Look at my thread:  How to select a good Speaker Cable  
and you will find out that a guy called Mr.  keppertup doubled his older # 0 awge to 2x 0 AWG and it sounds even better.
You stick a #0 awg cable as a solution for all, at a time it's not!
You ignore my say, you ignore the results and you are heading the ditch...

Dan Recklinghausen, HH Scott's Chief Engineer, famously said:  "If it measures good and sounds bad - it is bad.  If it measures bad and sounds good - you've measured the wrong thing."

I am not a cable naysayer - in fact, if I cared more I would resent that moniker because it presumes that the default is to accept claims of expensive cable amazingness, and that the burden of disproof is on others, whereas I would say the opposite is true.  I am a cable skeptic, however, who thinks that if there are improvements to be had from boutique cables, they are heavily subject to the law of diminishing returns.   That said, I am certainly open to trying new things so long as they don't cost me an arm and a leg to demo.  

If someone hears a difference, great.  And if they are happy with their choice, double great.  Not for me to judge, especially since I know well that there are people out there who hear much better than I do.  BUT, I have observed two phenomena that inform my skepticism of claims by both owners and manufacturers.   First, I rarely see people say that they did double blind testing of their cables; it tends to read more like - "I plugged it in and the difference was astonishing!"  Second, so many cable companies pour on the ridiculous marketing speak - all kinds of pseudo science and outlandish claims.  These phenomena obfuscate the core issues of why and whether:  is there a rationale behind the cable sounding better and did you really test to confirm that you are actually hearing what you think you're hearing?

To answer OPs question:  cable companies don't post measurements because they make a $h!t ton of money selling cables and measurements don't sell.  Cables are incredibly lucrative and facts don't enter into the sale as powerfully as perception.  Also, many cable companies do not post measurements because they don't have them, though there are exceptions such as Kimber.  See this post here by John Dunlavy.  https://verber.com/cables/

I think it is reasonable to ask for capacitance and inductance measurements. This is useful for determining compatibility with electronics, particularly for longer cables. 

I also find it useful to know the conductor material and primary insulation material (the insulation used on the primary conductors). While I wouldn't necessarily rule out a cable that used an unusual dielectric material, I'm more likely to try out a cable if I know it uses PFTE or FEP insulation since I have some experience in they way they sound. 

For speaker cable or power cords, it's also helpful to know the effective wire gauge, particularly for longer runs.