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In Reply to: RE: Rock "music" posted by David Aiken on October 30, 2007 at 20:09:37
Hi.
Enroute my business trip back home a few years back, I stopped over Vancouver, Canada & dropped in the largest audo boutique intown there.
I was lead into the hi-end sound studio there, & was astounded to see
a huge granite block, weighing several tons, lying across the front wall of the studio, where a few high end stuff were placed for demo.
Expensive stuffs, included full range of ASR Audiosysteme from Germany. The Germany Hi End award winner: outboard battery powered Emitter II, probably the most expensive intergrated SS amp in the world, built in a see-through acrylic housing (!!), was demoed to me.
The owner of the boutique told me he personally favoured using heavy mass like large granite stones as equipment support, as he found it sounded much better.
Stone cladded wall & floor is a totally different thing from audio support.
Even stucco finished wood or monsary walls & ceilings, a pretty popular home decor finishing, ring like hell as I've gone through so many auditions in homes with such hard pastered finishing.
Ground or earthcrust movements involved enormous kinetic energies outscaling the minute acoutic vibrtion for home audio. Total different ballgame, bud.
c-J
Follow Ups:
I did not say not to use it, I did not say it doesn't sound good, though I personally don't like the sound of stone which is why I use a Grand Prix Audio Monaco rack to support my gear. What my final paragraph said was:
"I'm not saying that there aren't people who genuinely like the sound of their components resting on stone because there certainly are. What I am saying is that the reasons given for why they prefer the sound of components on stone, ie that it is non-resonant and a good medium for isolating components from vibration, simply don't agree with the real facts."
If you want to debate that statement, show me some proof that it stone blocks actually are non-resonant and/or that they do not transmit vibration. There's lots of evidence that they are resonant—stone percussion musical instruments date back to ancient China so people have been using stone chimes for centuries, millenia even—and that they transmit vibration, as lots and lots of seismic studies show.
If you think it helps your sound, then use stone slabs and enjoy the results. I was not arguing against people doing that. I was simply stating that the claims that stone is non-resonant and that it isolates components from vibration, ie does not transmit vibration to them, are wrong. Lots of other shelf materials like maple and hardwoods are also resonant and transmit vibration. I've got no problem with people using such materials, but I do think they ought to know and understand that a lot of the claims made about them are simply not correct. If you understand what something actually does, you can work with it and get better results, so understaning what the real facts about a materials resonant and vibration transmission properties are is a useful thing.
David Aiken
Hi.
Nobody here ever claim natural stone, like granite or marble slabs are non-resonant. You created such an issue.
I'll give you some basic scientific rational about why high mass is better in dissipating kinetic energies which cause vibration later as I am now rushing out for a business meeting.
c-J
To paraphrase: Granite is less resonant than wood. I didn't say it was zero resonant. Everything resonates to some degree.
"Granite is less resonant than wood"
Is it? Less resonant than some woods, or than all woods?
One of the stone musical instruments on the disc I referred to is made from granite. It's made from a cube of granite 1 metre on each dimension, that's a cube with 40" sides. It is played by being struck with percussion mallets on one track, and simply rubbed with a wet cloth on others, and it produces a reasonable volume with each technique. I wonder whether a similar instrument made from wood, though the choices of timber allowing a solid cube that size to be cut from a single piece is limited, would be much different. A lot would depend on just what the timber was.
Have you some evidence for your statement other than a feeling that heavier bodies are less resonant than lighter bodies? That is not universally true, even in timbers.
As for reading what Jay said, he spoke about where to obtain stone offcuts cheaply. He did not address their properties. I replied to it not to contradict what he said but simply because it was the simplest way to post a response which addressed claims in a number of the earlier responses. If I was only trying to respond to one earlier poster, I would have responded directly to it.
David Aiken
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