perkri-
Excellent.
Actually they need to be prevented from going anywhere.
IsoAcoustics have been compared to springs and Pods. Search around, several have upgraded from IsoAcoustics to Pods or Podiums. The improvement is huge. IsoAcoustics cost a lot more than ordinary springs but are hardly any better. Maybe not any better at all, if the springs are carefully selected and tuned to load.
You can search around and find plain springs on line. It is a tremendous amount of work, and if you guess wrong there is really not a lot you can do about it but try again. If you want to go this route let me know, I have a small selection you can probably find what you want. But I wouldn't recommend it, not unless maybe you just love doing things the hard way.
That is why after a few tests I switched and started using Nobsound springs. They are just as effective but a whole lot more versatile. They can be adjusted for just about any load from 20lbs to over 150lbs simply by changing the number of springs.
Nobsound work so well they are end game for a lot of guys. If you want another huge bump in performance then go to Townshend Pods. Whether they work best under the sand box or between that box and the turntable will depend on the details. Study mine, and by the way the top shelf is a sand bed in cast concrete with granite on top of the sand. Pods between the granite and the BDR Source Shelf isolate the turntable. Very similar to what you are doing.
Timely subject!
Getting close to final set up of my TT.
Just made a base - 3/4" mdf "box" filled with sand.
Excellent.
The TT weighs just shy of 60lbs, the base is approx 25lbsVery similar to mine. https://systems.audiogon.com/systems/8367
My thinking is this. The vibrations present in the component needs to go somewhere.
Actually they need to be prevented from going anywhere.
The vibrations in the environment need to be prevented from getting to the component.Springs do both.
The component should be coupled to something the vibrations can dissipate to. The whole thing should be decoupled from the "world"The idea is the component itself will dissipate vibrations faster.
So I’m looking to put roller blocks between the TT and the base. It will both couple the TT as well as allow for horizontal movement.
Then, I’m thinking either ISOAcoustics pads under the whole thing, or, springs. So many sources for springs around that can serve virtually any purpose, and are inexpensive. Just need to find springs that are the right diameter (so they are stable), the right height (again, so they are stable) and the right spring rate so the whole unit floats. Meaning, the same force is required to "lift" it as is required to "push" it a given distance.
IsoAcoustics have been compared to springs and Pods. Search around, several have upgraded from IsoAcoustics to Pods or Podiums. The improvement is huge. IsoAcoustics cost a lot more than ordinary springs but are hardly any better. Maybe not any better at all, if the springs are carefully selected and tuned to load.
You can search around and find plain springs on line. It is a tremendous amount of work, and if you guess wrong there is really not a lot you can do about it but try again. If you want to go this route let me know, I have a small selection you can probably find what you want. But I wouldn't recommend it, not unless maybe you just love doing things the hard way.
That is why after a few tests I switched and started using Nobsound springs. They are just as effective but a whole lot more versatile. They can be adjusted for just about any load from 20lbs to over 150lbs simply by changing the number of springs.
Nobsound work so well they are end game for a lot of guys. If you want another huge bump in performance then go to Townshend Pods. Whether they work best under the sand box or between that box and the turntable will depend on the details. Study mine, and by the way the top shelf is a sand bed in cast concrete with granite on top of the sand. Pods between the granite and the BDR Source Shelf isolate the turntable. Very similar to what you are doing.