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In Reply to: RE: Speaker isolation, no spikes posted by LWR on July 22, 2015 at 19:14:13
Hey LWR,Does the speaker cabinet resonate? Putting your fingers on it lightly, can you feel it vibrating?
If not, you may not have a problem to solve, and you might just want to put something soft and decorative under them to avoid scratching the floor.
But, if so, the equations for determining optimum vibration isolation, given a known object weight and vibration frequency and resonant system, are well-defined. Since I'm in the audio acoustics field, I'd say look in Olson's "Acoustical Engineering". Or, google "vibration control" or "vibration isolation" or such. This is a daily issue for people who put HVAC equipment on/in buildings, isolate microchip wafer fabrication equipment from street rumble, etc.
As result, noise and vibration control engineers are rampant in the world. Every architectural firm either has them on staff or uses an outside consultant. Typically, they'll have a degree in mechanical engineering or maybe physics.
As a sort of "scatter shot" approach, you can just set the speakers on something which isn't good at transmitting vibrations, like a piece of carpet or consumer-oriented broadband absorber or such.
:)
Edits: 07/23/15 07/23/15 07/23/15Follow Ups:
Herbies Audio Lab
They work great on my 65 lb ProAcs
I have a couple of Navaho rugs that I will try under and to the front (early reflection control). The speakers do not vibrate, they seem to be mass loaded!!
Surely, you're kidding.
Don't you ever watch Antiques Roadshow?
Personal story: Back in 80s, I taught a computer skills class in Gallup, NM for the BIA. One young woman in the class drove from/to Shiprock every day. Her name is Violet Ben. I bought some of her silver/jade jewelry, which my wife still cherishes.
:)
these are not the 25K version of Navaho work, they are basically horse blankets we use as rugs...
I do have this Zuni piece, one of 3 made by a Zuni Chief whose name is lost. It is pretty old
A few years ago, on ARS, a guy brought in an old navaho blanket, and it was valued at $500,000 and described as "a national treasure".Be careful with your Navaho and Zuni stuff!
:)
Edits: 07/23/15
It is treasured...
Along with the rugs, I hope.
:)
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