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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.
noromance
indranilsen
113 posts
 
@millercarbon- I haven't used springs with any end caps or jackets. Those items add damping to the springs and sometimes it could be a good thing if the springs are very bouncy which adds a little ringing to the sound. But too much of damping is bad for isolation and also for the sound.
That is the reason why I don't use the black rubber mat on the Nobsound aluminum disc. In my system using Nobsound w/o rubber mats produces much open/better sound.
I wanted the jacket because my springs are all softer springs with a very low spring rate. Some of them are wobbly enough to cause twisting/deformation under the load. If the spring movement is not free then that works as a damping factor and I wanted to have the jacket to eliminate it to whatever extent possible and measure the performance.
Thanks

millercarbon's avatar
millercarbon
12,531 posts
 
You're welcome. And good to know. But I was talking about the spring setup mitch2 is using on his system page.
toetapaudio
474 posts
 
Try combining NobSound, FOS or MD springs with Ingress cup and rollers to obtain greater freedom of movement in the radial and horizontal planes. You may have to use a transitional platform of a suitable material between the two different components in order to get stability. I have found slate to be good but there may be other materials that work in your system. 
mijostyn's avatar
mijostyn
8,570 posts
 
The only thing a concrete floor does not isolate you from is an earthquake. None of our systems have enough power to move something as heavy and stiff as a concrete floor not to mention it is sitting on compacted stone dust. 
Millercarbon, glue an accelerometer to you garage floor and record its output while you start up your car, rev the engine and drive in and out. Please tell us what you get!
What I see here is a lot of wishful thinking without any science to back it up.  
uberwaltz's avatar
uberwaltz
13,381 posts
 
Mijo
To be fair we could be talking about two different types of concrete floor here.

You have the solid concrete floor like mine that is sitting on bedrock stones, dirt, whatever etc.
Then you have the concrete floor that is a platform so to speak and is suspended.
See link just as a FYI.

https://thermohouse.co.uk/blog/suspended-floors/

You will get two different results from the two different types of concrete floor.
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