Do equipment stands have an impact on electronics?

agear OP
1,223 posts
11-10-2016 12:47am
Geoffkait:Funny. 88% reduction at 20 Hz is NOT normal. You guys apparently still don’t understand isolation or what a low pass filter actually is. What is not mentioned in the report - but is obviously the case - is that at frequencies higher than 20 Hz the isolation effectiveness is even higher than 88%, for purposes of discussion circa 97% at 30 Hz and 99.5% at 40 Hz. Those number are fairly typical of ANY reasonably good mass-on-spring isolation device. Furthermore, it’s as obvious as the nose on your face that the 88% reduction was compared to the case without the isolation. You guys just can’t seem to catch a break. ;-)

To which agear replied,

"Neither it seems can you. Where are your measurements Einstein or is this a skill set long forgotten in the fugue state of your "education"?"

Uh, the 88% reduction is the measurement, troll. As are the other percentages in the report. Besides, the isolation effectiveness for a given iso device of known Fr can be easily calculated (or estimated if you know what you're doing) for any frequency of interest. And the Fr for these spring type devices can be easily determined using the second hand of a watch. Hel-loo! Can I make a suggestion?: if you wish to be an effective troll go back to school. Speaking of which have you given further consideration to marching yourself back to UVa and demanding your money back?

Geoff Kait
Machina Dynamica
give me a stiff enough spring and I’ll isolate the world

agear OP
1,223 posts
11-10-2016 12:44am
Are those NASA-spec springs I spy?

http://www.solid-tech.net/products/discs-of-silence-4537455

Finally! Someone was smart enough to copy my original Nimbus Sub Hertz Isolation platform design; Nimbus used a single vertical air spring with a lateral support spring system - a series of small springs. The difference being the Nimbus used only ONE spring total, whereas other systems are forced (due to the technical difficulty of using one spring) to use multiple springs (to obtain sufficient lateral support) which raises Fr of the iso system. The best Fr achievable with multiple vertical springs is about 3 Hz. Which it’s bad, but it’s not anywhere near as good as 0.5 Hz. The reason 0.5 Hz is important is because the peak Earth crust motion is between 0 Hz and 2 Hz. That’s why the Nimbus Unipivot at 0.5 Hz Fr is still the best, even 20 years later. Hel-loo! Addendum: for speakers the Fr of the isolating device is not critical since the lowest frequency that needs to be isolated is what, 25 or 30 Hz?

The noise coming down and out from any component or any speaker is greater than the background noise coming up from the Earth toward that same component. Of course the component needs to be resting on a device like our Audiopoints which funnell energy away from the resting device and to a higher mass below. Our point shapes accomplish this feat of nature much like a venturi which speeds air flow or a nozzle on a fire hose. The increase pressure exiting from the tip will resist any energy trying to enter the the tip end. Our Audiopoints are not a spike and operate with simplicity of design and function. Tom  Star Sound.

theaudiotweak
"The noise coming down and out from any component or any speaker is greater than the background noise coming up from the Earth toward that same component. Of course the component needs to be resting on a device like our Audiopoints which funnell energy away from the resting device and to a higher mass below. Our point shapes accomplish this feat of nature much like a venturi which speeds air flow or a nozzle on a fire hose. The increase pressure exiting from the tip will resist any energy trying to enter the the tip end. Our Audiopoints are not a spike and operate with simplicity of design and function. Tom Star Sound."

Stop shilling for a second and listen to what I said. Even Mapman said it. The ripples on the surface of the water in the glass on the top shelf are produced by seismic vibration, not vibration from the component. That’s why, when the component is isolated, the ripples vanish. Just because you guys have always ignored seismic vibration doesn’t make them go away. 

Wrong.. we will soon post a video. You have been wrong for more than 20 years.
You should get a medal to wear with a spring attached. Greater forces from above keeps the background noise out. Tom