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
Springs and shock absorbers are completely different beasts. If you have just the spring and not the absorber you can get oscillation at the resonant frequency.


Are there any tests w.r.t. frequency response, distortion, impulse response of a speaker on/off an isolation platform to characterize the improvement? 
Shock absorbers are air springs or gas springs. They’re springs. You say no, I say yes, you say hello, I say goodbye. Goodbye!
A vehicle suspension consists of a spring element AND a shock absorber. The shock absorber portion is not a spring. It moves typically fluid between sections through small channels converting motion to heat. A little research may be in order for you.
It's okay Geoff. I am going to guess most people know the difference between a shock absorber and a spring in a car even if you don't. Here, maybe this link will help you:


https://www.bilstein.com/us/en/technology-and-knowledge/basic-know-how/