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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
lukaske
307 posts
 
Use marble tiles with rubber studs underneath:is the best solution.
michaelgreenaudio's avatar
michaelgreenaudio
1,019 posts
 

"I always thought you wanted to couple your speakers to the floor (with spikes).     Now it is best to decouple them?"


There is no such thing as decoupling in audio. That's just a talking point from those who are dampening. Once you put your speakers in a room all the physics of that room and the speaker becomes one and the same.

blueranger's avatar
blueranger OP
719 posts
 
Maybe other methods are better than spiking but and I say but, my isolation bass helped on the low end of the audio sound spectrum.
geoffkait's avatar
geoffkait
23,365 posts
 
If there was no such thing as decoupling we never could have detected and observed gravity waves. The only challenge for decoupling for audio is how many directions 🔜 🔚 🔝 you can decouple from and how low a resonant frequency Fr you can achieve for each direction. My airspring Nimbus of yore, for example, decoupled in all six (count em!) directions with Fr as low as below 1 Hz. The lower you go the higher you fly. 
In other words decoupling is not (rpt not) synonymous with damping. Damping techniques on the other hand 🖐 cannot affect extremely low freqjencies of vibration. That’s why mass-on-spring devices must (rpt must) be used for vibration in the range 0-20 Hz. You can also think of iso devices as anti gravity devices, if that helps. By the time you get to 20 Hz you’re already 95% effective. So, where’s the beef? 🍔
michaelgreenaudio's avatar
michaelgreenaudio
1,019 posts
 
When was the last time you had an in-room stereo Geoff?
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