Vibratory or Not?


This is a discussion that for me began on the Stereophile forum which went horribly wrong in my opinion. I was wondering though if this same topic could be discussed here as it comes up a lot in one form or another. My background has been about vibratory tuning as far back as the 70's work in the recording industry and continued into home audio and beyond. The audio signal is one that can be easily tuned, I doubt there is much room there for debate, but we will see, it's Audiogon after all. This being the case I have always concluded that the audio signal is vibratory so has anyone I have ever worked with. It's a common and sometimes even daily practice for someone here to make a vibratory adjustment changing the sound which is obvious to all.

On some of these forum threads however you will see posts saying to get rid of the vibration, without any explanation as to how to remove vibration without altering the audio signal. Every vibratory move I have ever seen done changes the performance of the sound. I've also been a part of the variables of the audio signal during play in real time. If the audio signal is not vibratory how does it change?

I invite you to discuss the vibratory structure and nature of the audio signal.

thanks, lets keep trolling to a minimum please

128x128michaelgreenaudio
You’re close. Very close. The audio signal in wires in an AC circuit is actually alternating, not (rpt not) oscillating or vibrating. You must have not gotten the memo regarding acoustic feedback to believe that isolation of speakers and components is of the utmost importance. I.e., the audio signal doesn’t like vibration. They clash. In fact that’s why the natural frequency of tonearms and cartridges are designed to be much lower than the lowest frequency almost all speakers are capable of producing. Perhaps you could be open to the possibility you’ve been following the wrong, you know....

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Hi audionuttoo

"Those who don't experience it will always question and debate it."

First, I'm thrilled to death that you have come up! Second, helping people, especially now, in this industry is paramount in the face of the major changes taking place for listeners. We are at this great moment in the hobby of playback where listeners are moving from very high mass systems to systems that are able to produce so much more music. But listeners need people like yourself to help them make the move to a more practical place.

We went through the age of big robust components and to be honest it was a good time, but now we enter a new chapter. This is the era of the listener and the tools of Tuning. The homework has been done over the past 30 years or so and the demos have been made and continue every day. As you said  "Those who don't experience it will always question and debate it." and that's the bottom line. If someone doesn't have a tunable system they're stuck in the world of talking points.

I hope we see more of you my friend!

Michael

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Hi Geoff, with regard to your comments on the best pressures for tubes, 15 to 30 psi seems high, we’ve had great results from extremely floppy tubes probably sub 2psi supporting square slate platforms. I was wondering what your thoughts were on this?

Your isolation table design is very interesting but I understand is no longer available? What are you currently using?

Stacore are getting positive customer feedback, are you aware of their designs? I hope to evaluate soon.

Thanks.




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