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
To his credit, which I give grudgingly, GK does claim his springs are Cryo Treated
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Ironically I don’t sell to members here. That would be too icky. It’s also against my company policy to sell to knuckleheads.
So, sorbethane in place of cones or springs to couple to floor.? If I had sone extra funds I'd play around with both.