Springs under turntable

I picked up a set of springs for $35 on Amazon. I intended to use them under a preamp but one thing led to another and I tried them under the turntable. Now, this is no mean feat. It’s a Garrard 401 in a 60pound 50mm slate plinth. The spring device is interesting. It’s sold under the Nobsound brand and is made up of two 45mm wide solid billets of aluminum endcaps with recesses to fit up to seven small springs. It’s very well made. You can add or remove springs depending on the weight distribution. I had to do this with a level and it only took a few minutes. They look good. I did not fit them for floor isolation as I have concrete. I played a few tracks before fitting, and played the same tracks after fitting. Improvement in bass definition, speed, air, inner detail, more space around instruments, nicer timbre and color. Pleasant surprise for little money.
Ron Carter is already in my room.... Imaging is so good the sound exist independantly of the speakers....

And "liveliness" is a quality in acoustic linked to among many factors with the reverberation time and synchronisation and participate among at least 5 others characteristics to define the mysterious fact of "timbre" in acoustic...

I dont know if a computer program can modify the reverberation time in a specific room with a specific varied content ....Playing with frequencies he can compensate to a certain degree but using it positively for a set of ears in particular in the perception of timbre, i think that it cannot....

The " liveliness" of my sound result from my playing and work among other factors with this reverberation timing....The guide was my ears.....Ordinary ears by the way.... The myth of bat ears is a bad joke by some to discredit the use of our "biased" ears in audio, ears with which i listen to music without being able to de-biased them to this day...I know that computer formulas can make the room perfect for non biased and perfect ears tough....But not for mine Alas! :)

If someone designed a big void room especially and only for music and for a crowd, a set of law applies very well and straightforwardly...

If someone want to accomodate a small Room with an already disparate acoustical content (furnitures, coofins, books etc) for a pair of specific ears, using these biased ears is for me necessary.....Laws under the guise of computer algorithm will lack something and will miss some fact to work with like reverberation time for a particular set of ears(mine) in a small ordinary room and not for the crowd in a big musical hall....Reverberation time for example cannot play the same role in these 2 different locations....

Liveliness is not reducible to transparency for example....

By the way i am not a scientist, only a nut without money who create his own heaven by homemade device only.....

I succeed to my satisfaction..... :)
indranilsen, The MinusK platform is not that hard to use. You move the turntable around on it until each corner of the platform compresses the same distance. It takes about 15 minutes to get it right. When you order the platform it is made for the specific weight of your turntable. You do not have to deal with spring rates at all. 
My feeling on the subject is straight forward. I will not use a turntable that is not isolated. I would rather buy a well engineered turntable, suspension built in than have to mess around with MinusK platforms and such. There are many excellent suspended turntables from the Sota Sapphire all the way to the Dohmann Helix and Air Force Tables. I think Thorens makes a few at a lower price point. A good suspended table should be immune to everything up to an elephant stepping on it. I can bang the side of my Sota with a hammer and it will not skip and you won't even hear it through
the system. 
Lewm, you and none of those other people obviously have not heard a system like this.
Impressive. Do you also read tea leaves, tarot cards and perform remote viewing?
... A good suspended table should be immune to everything up to an elephant stepping on it ...
I'm inclined to mostly agree. And yet, in another thread, you claimed this:
If I delete the subsonic filter from the program it ia mass pandemonium. It looks like the drivers want to jump right out of the cabinet. It is just inherent in vinyl if you have a good system capable of reproducing deep bass.
As I've mentioned, and as many have demonstrated, such a problem is not at all inherent in LP playback.
To get back to the actual subject of this thread......

I experimented a little more with the pods under my 401 as it was still a little off balance to my eyes.

Now have 3 springs in left rear and 2 springs in the other 3 corners.
Had to go back to 4 pods as where the rear center needed to be was right where the motor cutout is.

Bass is still nice and tight and very detailed all round.
Cleeds, yes I read tea leaves but most importantly systems like mine are obviously very rare at this point. Few understand the basic issues involved so I am left waving the flag by myself. Which is ok by me. Anyone can ridicule me all they want. Until they have lived with a system like mine they have no idea. Now, people are always bragging about how great their systems are. La De Da. I could give two hoots about what people think about me or my system. I am only trying to give our members an idea about what is possible. But I'll also have to live with the fact that most people still think the earth is flat

Now cleeds, you seem to be confusing two issues. Good suspended turntables are immune to external factors. Like I said I can hit my turntable with a hammer with no ill effect as long as I don't hit it hard enough to cause a dent. Do not confuse this with the low frequency information that is on the disc in the form of warps and surface irregularities which a good system will try to reproduce blindly. If you have a system like mine which is dead flat at the listening position down to 18 Hz with 2000 watts driving each of four subwoofer drivers this spurious information will loosen the fillings in your teeth before it destroys your drivers. Blocking this information is I would think obviously critical in this situation. The only way this can be done without affecting the audio range is with a steep digital filter which I am fortunate enough to be able to program in my system. I hope this explained it adequately.