Let’s not play this game and say we did.
DIY speaker isolation base for a wood floor
A definite sonic improvement in tightening up the bass.
1. Start with 4 aluminum cones. I used some old Mod Squad Tip Toes.
2. 16x16 slab of granite.
3. 1/8 cork.
4. 1/2 inch neoprene rubber.
5. 1/8 cork.
6. Top with another 16x16 slab of granite.
7. Enclosed with a wood cradle to hide the mechanism.
The granite is from scraps from a shop and was cheap. The added 1/4 inch of neoprene to 1/2 inch thickness did help. Let me hear your thoughts.
1. Start with 4 aluminum cones. I used some old Mod Squad Tip Toes.
2. 16x16 slab of granite.
3. 1/8 cork.
4. 1/2 inch neoprene rubber.
5. 1/8 cork.
6. Top with another 16x16 slab of granite.
7. Enclosed with a wood cradle to hide the mechanism.
The granite is from scraps from a shop and was cheap. The added 1/4 inch of neoprene to 1/2 inch thickness did help. Let me hear your thoughts.
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- 173 posts total
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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. |
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? |
- 173 posts total