DIY speaker isolation base for a wood floor

If anyone would like a quick refresher on springs, mass, and resonance, they may enjoy this:

https://www.newport.com/t/fundamentals-of-vibration

Newport is a scientific instruments company mainly focused in anything related to optics and light and anything related to that, including vibration control.

i.e. a spring that is 1.5" free length, 1 inch compressed with a 10lb load will have a C of about 0.00029  meters/newton, and a resonant frequency with a 10lb (4.5 kg) load of 4.4Hz.   That  (w) is radians/second in the link.

Thanks for the link to the Newport primer @audiozenology. Another interesting maker of passive spring-based isolation platforms is Minus-K. Unfortunately priced on the high side.

Ironically (perhaps) Minus K is actually the modified “audiophile” version of the Newport Corp Sub-Hertz Platform of yore. Also ironically, the Vibraplane, the first high end iso stand is also based on a Newport iso stand, a table top microscope stand. 

But what is missing, if I can be so bold, is the “black art” of isolation necessary to get the best performance out of isolation systems. It’s not all numbers, guys! In the beginning there were only four iso stand manufacturers - Townshend, Brightstar, Vibraplane and your humble scribe, and mine was the only one with a sub Hertz performance. Of course, there should be a tip of the hat to LIGO project - the grand wazoo of isolation ever since it detected gravity waves, the amplitude of which are on the order of an atomic nuclear.

Also, of some interest to the student is the fact that the actual operating principle of the Minus K stand is “negative stiffness,” a much more complex principle than simple mass-on-spring employing stiff members and springs. Get it? Negative K?

Nano-K did not start out in audio, that was just a side market. The primary market for Minus-K (Nano-K) is scientific / industrial.


You can be as bold as you want but I am going to say the guy who runs Minus-K with his 10's of patents around shock and vibration isolation knows a few things about the "art" and science of isolation and probably has the numbers down pat as well 


Kinetic Systems (vibraplane) has been around since the 60s.   When did Your company release an isolation platform?

Somebody woke up on fhe wring side of the bed. I’m feeling a lot of angst Nd frustration. 😩 You are still my favorite internet scientist. 😬