2. speakers
  3. 153172-1252

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.
128x128blueranger
audiozenology
362 posts
 


  1. Does Sorbathane convert motion into heat? ... yes
  2. Is turning motion (vibration) into heat as opposed to sound where cabinet motion is an issue a good thing? ... yes
  3. Do springs store energy? ... well of course yes. The better the spring, the more perfect it’s energy storage.
  4. Is isolation always the path to the best sound? Of course not.

Feel free to address 1 to 4 in a cogent manner.
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geoffkait's avatar
geoffkait
23,365 posts
 
Let’s not play this game and say we did. 
audiozenology
362 posts
 
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.



bdp24's avatar
bdp24
9,800 posts
 
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.
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