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

Yes, go ahead and measure my Synergistic Research Atmosphere X Euphoria SPDIF digital cable.  I would pay $25 to find out how it measures.  But I'm not sending it to you, you'll have to acquire one on loan from a retailer, SR or someone else using it and I will pay for the results. 

@holmz You are correct. He could have needed better fuses or IC cables or something else.

The question was:

1. how did you know it needed the power cord?
2. What is happening with the power cord that makes it better?
3. Is there a way to measure it?
4. or does it not manifest itself in a measurement?

However, several other friends tried the Pangea power cable. No go. They disliked it compared to whatever they had been using. I know how great my power cables sound on several systems and the lack of returns on 1000s sold privately. So, I lent him the less expensive, earlier model, just one and he was dumbfounded. He replaced all the power cables. He was ecstatically happy. I’m happy for him and after he also changed his pre-amp input tubes, I am happy to listen to his audio system.

Good for him.

Yes, I’m only telling fables in your opinion. Not! You can believe it’s just another story and the sound could be the same. Not!

Let me rePhrase it.

“How can I tell the difference between your story and a fable?”
How would I know whether it is true and a real thing or a psychological thing, or even just a story.

I’ve related how poorly his system reproduced low frequencies with very jagged sound and now a smooth sound up and down the scale.

OK- Is there a plot like @kota1 showed where the frequency response went from jagged to smooth?

Voices are full and forward (instead of floating in the rear and thin sounding). I was using my CDs which I am very familiar with. If that earlier system from 2019 were mine after spending nearly $1/2 million, I also would have been very disappointed. It may not be perfect but after a few changes (10X more expensive power cables, 5X less expensive input tubes) his now high end sounding system is one I would be proud to own (except it is only CD based, uploaded to a computer and thumbdrives, going through a computer directory, through a Berkeley USB something or other to the DAC, then pre-amp then tri-amped multi-box speaker system). Too much work for me, I just plop the CD into the transport (or work a little more with LPs, 78s and R2R).

@td_dayton 

also updating to point out that this guy, while he's been quite critical of some of the reviewers i enjoy reading like lavorgna, doesn't appear to have a history of attacking other measurement-focused reviewers and booting them from his comments section. food for thought

Yes, Archimago appears to be a well-adjusted human. Also a decently articulate writer. I should check his blog more often.

@russ69

Let me rePhrase it.

“How can I tell the difference between your story and a fable?”
How would I know whether it is true and a real thing or a psychological thing, or even just a story.

This is the essence of chat rooms and the internet. Of all the stuff you read how do you filter out what is relevant to you. In my opinion measurements of a product are a poor indicator to whether or not you will like it. A good indicator is customer reviews. Look at the opinions of people who bought it. I am NOT a believer in the blind test unless you have a panel of trained listeners and the proper setup. I am a BIG believer in the customer knowing if something is good or bad. If you want to know if product X walks the walk check Amazon, Crutchfield, Audio Advice, Sweetwater, Guitar Center, etc. for customer reviews.  Then check the forums and some professional reviews. Then audition it by leaving it in your system for a few weeks and see what happens when you take it out.

If there was one measurement that was universally best for everyone every manufacturer would produce their gear to fit that measurement in order to compete. I wish that were true but it just isn’t.

@laoman +1  He won't even post measurements and pics of his own system. No one will make fun of him here, this is a thread about measurements.

Did he just show up to throw up or is he going to throw down?