With springs its very important they be tuned to the mass of the component.
Yes it is very important and i had the experience of audible differences with a modification of less than 1 % of the compressive mass...(between 100 and 200 grams)
But for those who will use them with small speakers, easy to damp with a load, the use of the boxes springs ask for a DIFFERENTIAL tuned compressive force to eliminate or decrease internal resonance and not only isolate the speaker....
I try an experiment that make an astonishing difference...
I put 4 springs boxes under the damping load on top of my speakers,(75 pounds ) and the differential tuned compressive force created by the addition of the speaker weight, in addition to the damping load, on the springs boxes located directly under my speakers themselves, decrease the standing wave negative power of the internal resonance of the speaker and gives a more natural timbre and a better imaging at the end..
( It was very important and it takes me a few days to fine tuned, this time for the 2 set of boxes springs, the damping load)
For speakers where it is possible to do it, a differential tuned compressive force is very amazing...
Springs are good isolation but they had their own problem and are not perfect, nothing is....But with a differential tuned compressive force they are near perfect yes for speakers....2 problems are there: isolation and resonance....
I wrote that because i had see no one making that experiment ....It seems all use only 4 springs boxes under the speakers and it is not an optimal solution for me because of these 2 problems....
And that experiment solve for me the mechanical embedding of the speakers .....
My springs boxes are on top of a multi layered sandwich platform on my desk, near other components, then it was very important for me to solve that vibrations problem on my desk....... It is done at peanuts costs....
For the electrical grid embedding i create my own solution also not perfect but very effective...The more complex to solve was the acoustical embedding... I just make other improvement today with devices controls of my own and i will speak about that in my thread tomorrow....
My best to you....
