DIY speaker isolation base for a wood floor

I have pictures of it broke down step by step in my profile here.

Thanks for offering Geof.

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.

Thanks for all your opinions. When finances allow I might get those springs that Geofkait sells.

I want a firm solid foundation closer to concrete. We may be over thinking this. A bouncy spring on a bouncy wooden suspended floor? Nothing that gives is going to firm up the bass. Muscle is what is needed to control the woofer. Right? No movement. My platform is not perfect. Would it be better if I place a 36x36 inch slab of granite directly on the floor? 

https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dwst_XwbwTqk&h=AT2YvQB...
Thank you admin for stepping in.
This is a link to the Rocky Mountain Audio Fest last year. You can here the difference on your smart phone. I don't have a perfect solution but this video gave me the inspiration to go forward. I do think there is an improvement. If anyone has a platform for me to borrow and return I will. I'm half serious. 

https://www.facebook.com/100004001598864/posts/1529687513841287/

Here is my DIY speaker platform.

So, sorbethane in place of cones or springs to couple to floor.? If I had sone extra funds I'd play around with both.

Thanks Georgehifi

My speakers are 75 lbs plus 2 16x16 granite slabs. Thanks!!!

So my original design is sound? No pun intended. To get a tight grip on the woofer? Without the floor trying to affect it? To spike or not to spike? So sorbethane is out and my neoprene and cork sandwich stays? Or a spring sandwich
 with springs underneath too? Just curious does anyone here have a physics degree. I can hear positive results with my stand. I don't want to start a war with oral howitzers pointed at each other. I'm not trying to brush away any ones opinions. I wish everyone could come to a consensus. Lets have a vote. Without the why's please.
1. Sorbethane
2. Springs
3. Mapleshade device
4. Dedicated supports from my video of the RMAF
5. My device
6. Other. Explain?

Should I get conical springs?

Thanks for everyone's help!! I ordered the 8 springs today. They should be here Monday. Ih what fun. Let me put the ideas I have in my head.
1. Use the 4 springs on the floor directly coupled to two 16x16 granite slabs with nothing in between.
2. Same as above but with aluminum cones between the slabs.
3. Same as #2 except the cones on the floor and the springs between the slabs. 
4. Springs on the floor and sorbethane between the two slabs.
5. The springs on the floor with a cork and neoprene sandwich between the slabs.
Ok now which one should work best????? Where's a testing lab when you need one! I'm excited about trying these options. I'm off next week so I should be able to experiment. Again thanks for your input.

Oops I don't know. I went by today and they had 6 so I had them order 2 more. I should have taken them home with me. I can call Friday and find out though. This is fine line technical. Thanks.

Well the springs were wobbly. I didn't like it. Geoff does your springs wobble with 130lbs?

So Geoff, do you recommend me doing away with my neoprene/cork sandwich and use my two 16x16 granite slabs?

Thanks Geoff! I had a video of me pushing on it but couldn't download it here.  What are the dimensions and wire diameter that You sell? You are a great resource

Wow there us some good points brought up here with passion behind them. Look I do appreciate the gusto behind your arguments and lets keep it respectful. There has to be someone who has access to the right measuring devices. Where is a college physics major who is writing his thesis when you need them? This would be great for a class debate with the tools needed in the same building. 

Eureka!!!!! I have the answer!!! Suspend the speaker from the ceiling!!!! Case closed! Well NOT. Oh thanks foe the link. I have rad about half. Going back now

Oh I did see that Iso Acoustics was tested. So maybe the speakers distance apart had the biggest impact. Ah I like the looks of my bases. If I say this beach is secure. This beach is secure!!!!

Interesting article from a snake oil sleuth. I have wondered too if the change was somewhat due to speaker height. I swear my DIY speaker isolation base made a worthwhile difference when I played Madonna's "Erotoica" and Al Stewart's "On the Border" The bass seemed better controlled and deeper. I dont want to think that the expense of time and 💰 money was wasted. That earlier video of the RMAF show was impressive. So according to the article he didn't test that guys product did he? So I'm thinking maybe my DIY speaker isolation platform is making a small but positve step closer to audio nirvana.

Ok Geoff I'm trying your idea of springs and a granite slab or 2. I would assume 2 stacked would be better. I'm going with nothing in between. I'm picking up the springs Monday. I will tinker with that. I will then see if the sorbethane between the slabs is a bust with the springs. Maybe skip that and go with the spikes. Thanks for your expertise here and thank everyone else for there sometimes passionate opinions.

Thanks Geoff here is what I know.
102 lb load rated springs.
Spring constant 126.25 lbs per sq inch.
1.375" OD x 0.177" steel wire and 2.75 " length.
The slabs weigh 32 lbs and I  have four
The speakers are around 72 lbs.
I can get more when I go to town. I can't wait to try these. Thanks

Speakers are 42 inches tall.

Thanks audiozenology. I'm going through the myriad of springs Fastenal carries. So I should pick one that approaches its max spring capacity? They do have some in stock that has a mx bearing of 57 lbs each. Should I get those?

Bass is better on Madonna's Erotica. I can't remember lyrics worth a dang but sounds I do remember. I don't listen to lyrics much anyway. Maybe I will try springs on down the road

Thanks Georgehifi! The sorbethane came in today from the eBay seller you showed me. Playing the first couple of songs of the Chicago CD I had listened to last. It sounds wonderful. Maybe placebo but I will know later tonight. I got some more springs but not wide enough and too narrow. I'm still going to try the spring method as Geoff likes some day. Right now things are sounding good!

Something is going on here. I replayed Boz Scaggs Low Down and Lido Shuffle and his voice was strident on certain passages before. It is definitely much smoother and not shrill. I will have to listen more to make sure the sorbathane is not smearing or making the bass mushy. Positive first impressions here. Spin baby spin

Ok the sorbethane is toning some things down. On The DBs  Long Train Running the 2nd ryhthm guitar is not as prevelant but sweeter. No a bad thing. I do have to listen harder to hear it. Unless the power coming into my house right now has been filtered by the audio gods, I'm hearing a positive difference. I can see why some songs people might say it takes away detail and smears But it might be system and listener dependent .But time will tell. 

Well after talking to Fastenal face to face I have decided to abandon the sprungs for now unless someone can guide me. The rep saud that's a tough spring to find. I need a short fat one for stability. Now way am I going to risk my speakers tipping over

You dont respect people's opinions. They are simply here for your entertainment. Do you want to go down the rabbit hole with me? You ruin every post here

Thanks for chiming in Quincy. I'm sold on the pucks too