I have always found this to be a fascinating subject. Partway agreeing with some of the ideas here, I tried something a bit different. First of all, the speakers that built have very heavy duty outriggers. I did this because the speakers that I built were just a bit narrow at 12" wide. I found Sorbothane 50 thick pads that were mounted to 1/4" bots. That made it easy to just screw them into the outriggers. Knowing that Sorbothane has issues on many surfaces, I happened to find furniture cups with a bunch of small plastic spikes (probably meant for carpet), that neatly fit over the bottom edge of the Sorbothane. End result is a maybe yes maybe no outcome. When I was still a bachelor, I thought about metal screws holding the speakers tight to the floor... and round we go.
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.