Speaker Spikes - Working Principle


Vibration damping obvious makes sense (in speakers just as well as in cars). 

That involves 'killing' (converting into heat, through typically internal friction) kinetic energy. So any sort of elastic material (rubber has lots of internal friction) makes sense. 

And then there are spikes. Using a pointy hard object and pair it with a softer, elastic material (to deform, and kill kinetic energy) can work; think metal sharp spike into carpet or wood floor. 

But what is the idea behind pairing fairly unelastic metal (brass for example) with similarly unelastic (brass, stone, etc) material (example photo provided)? Only thing I can come up with: LOOKS good and makes owner feel good  thinking its an improvement (works only for Audiophiles though),

Even more curious: are they ENGINEERED "spikes" (vibration dampers or shock absorbers) for speakers that are TUNED for the frequency (and mass)  that needs to be dampened? Can piston style fluid dampers be designed for the high frequencies (100, 1000, 10000 Hz) using geometry, nozzles size and viscosity of the fluid?

 

kraftwerkturbo

Showing 2 responses by amtprod

@j-wall Can you post images when you get a chance?  Just to see visually what you were dealing with before and after now that you have logged some sound signature changes.  Thanks!

 

@j-wall Oh now I see what you are working with.  You are actually possibly helping two areas and items: the sound reproduction IN the music room, and trying to reduce the impact on the living space BELOW. 
I have a few of the Herbies rubber things under my equipment and under bookshelf speakers so no real major differences, but just 'good practices'.
It's good to see/hear that the pucks are helping a lot in suspended floors and two room considerations.