ahgister
Yes, springs despite possible accidental impact instability issues may well be the best way to go.
As you say the cost is negligible.
Richard Vandersteen on the other hand doesn’t seem to like any introduction of compliance between speakers and resting surface.
I can see where his argument is coming from in regard to the loss of treble information introduced by additional compliance.
On the other hand I would that think movement of the treble dome, which can be measured in microns, is far too small in size and mass to be affected by any form of compliance placed underneath the loudspeaker.
My speakers are heavily damped (75 pounds) and with 2 set of springs for each speaker dyssemetrically compressed the advantages of the springs is not only that they isolate well but that it decrease also the negative power of internal resonance of the speakers rectangular boxes which is more impactful than the alleged compliance of the springs boxes which according to Vandersteen is supposed to decrease the highs....I obtain way better highs frequencies with this method.... No spike can beat that....Isolation from external vibrations is not all the story to tell.... Internal resonance is also a story....
I put my springs on top of varied materials in sandwich(cork-granite-sorbothane-bamboo) because my dac and amp are beside on the same desk.... It is very efficient.... Almost no vibrations to my knowledge comes from speakers or go to them, minute some unmeasurable by me anyway....My other gear is on top of the same sandwich....
In the beginning i tried 4 spings boxes by speaker like all people .... It was an improvement.... Then i read about damping tuning mass in building architecture.... That gives me the idea to tune the springs by changing the compressive force acting on one set and on the other...The only way was putting a set directly on top of the speaker under the delicately tuned damping load weight compressing this set of springs....(we must fine tune the load near 1% of the required mass i did it with my ears no calculus necessary) The other set directly under the speaker is more compressed because the weigh of the speaker itself add to his compression and not only the damping load....The resulting improvement was on the same scale than the first improvement proving to me that only using a set of springs under the speaker is not enough....
The dramatic change introduced by the rightly use of the 8 springs boxes for each speaker is then the key.....16 spring boxes in all but they are chinese cheap one very well made and like the Nobsound one....Under 100 bucks for the 16 boxes then not much more than peanuts for this... 😁😊😎
