Springs under turntable

The most dramatic difference was under my Herron phono stage. This is with the extra springs removed from the set under the turntable. I cut some MDF pucks out with a hole saw, drilled out 1/8" deep holes 1/4" in diameter and stick em together just like Nobsound. Only mine are for just 3 springs per. 

So I put three under the phono stage and the bass is off the charts deep and full, but the mods are too warm and the highs are gone. So I add one more and now the bass is just right, a little fuller than before but not exaggerated, the mids are nice and warm yet still detailed and the highs are almost as extended as they were before with BDR. 

The stage is still on BDR Cones, Round Things, and Shelf. The springs replaced the BDR Cones that were under the Shelf. Will probably eventually try swapping, springs directly under the stage on top of BDR. But for now this really is a pretty sweet setup!

If the resonance frequency of the sprung mass is higher than 20 hz the whole thing will vibrate at that frequency which will definitely do some interesting things to the bass. None of them good. The reason that you should set the springs below 3 hz is so you can't hear the suspension and anything that is happening in the room above 3 Hz. A good suspension should produce blacker backgrounds and isolate the turntable from foot falls and the kids hitting your equipment rack with a basketball. Otherwise it should do nothing to the sound. 

Hello,
I spent last night adjusting the load on Feet of Silence footers and got it to work. I am excited to report that the footfall issue with my turntable is now gone which I couldn't accomplish using the Nobsound discs. The soundstage has opened up quite a lot as expected with better imaging, depth and clarity. The speaker disappeared much better than it did before. So I am happy with its performance but not completely satisfied with the price to performance ratio. I will continue listening to this set-up to see if there is any change in the performance over time.

I am not able to compare it with Nobsound discs because I was not able to get Nobsound springs work/eliminate footfall when placed under the turntable. However I have previously used Nobsound discs under heavier electronics and coming from that experience I can say that the Solid Tech feet of Silence footers do offer a much better performance. Better in terms of overall clarity, imaging and the speaker disappearing factor. As I mentioned before Solid Tech design being able to isolate in more than one dimension allowing smooth spring movement is expected to perform better but its price to performance ratio didn't impress me...

In my experience, the spring based isolator performance regardless of its design/price depends on the load sitting on top of it. Utmost care should be taken to ensure that every spring is compressed to 97/98% of its max load. Without that sound could appear to be bloated, bass heavy and veiled besides surfacing footfall issue for few turntables. For Nobsound discs, I measured a set of 3 discs each having one spring can cary a max of 18.5 lbs (approx). So this configuration needs to be loaded with almost 18 lbs to be able to get to the desired isolation point. Each spring/disc should need just a slight finger touch (not press) to get to the bottom and you should hear two discs touching each other. Any further load, you are not going to get the real isolation benefit. What I have stated here is purely my experience and I am not trying prove any theory or point...

@uberwaltz- What you are describing sounds like a less than optimal load situation with Nobsound springs. These springs are stiff and can take a lot of load. These discs can be used with one spring and hence your two spring per disc layout should work. You can refer to the following manual to see how a two spring layout could be implemented.
https://www.audioadvisor.com/pdf/SolidTech_Isoclear_Application_Instructions.pdf
It is a Solid Tech manual but it works for Nobsound discs... Hope that helps.

Thanks.

@uberwaltz Try 3 Nobsound springs under the 401. 2 at front -the way I have them. Then 2 at back. Interesting upset in your result. Mine is the opposite with the mids projecting free of the speakers and the highs sparkling. Frankly, I thought my ESLs were tired in the treble. Until now. Lit up!

@mijostyn- I couldn't agree more on that 3hz isolation level. That is our target. However getting to that 3 hz natural frequency with compression springs needs a special focus on the load interms of weight & material that to me is the most difficult factor....That is where you are playing with balance, precision and the level of damping of the surface.
Thanks.