Springs under turntable

"When correct implementation of zero stiffness on loudspeakers is administered, there is no question of the superiority of this engineering practice on the voicing of the loudspeaker." (rixthetrick)

rixthetrick, What is zero stiffness? That is a term I have never heard before. How is superior when it comes to "voicing" a loudspeaker. 

They make little blue pills to deal with zero stiffness.......so I’ve been told.

Springs are THE solution for controlling vibration from machinery in commercial applications. I have found these to be more effective in platform applications as compared to ball bearing solutions, which was the case with my Garrard 401, which has its plinth sitting on a platform.

mambacfa, in the case of industrial machinery you are trying to isolate everything else from the vibrating machine. Listening to the machine vibrate is not the objective. I think that is quite different from a device that is intentionally either producing or reading vibration that has to be transferred in an accurate way. The reader has to be protected from all other vibration in the environment and the producer has to be locked in space so that it does not produce any unwanted vibration.

No Flatblackround. I think he is doing cocaine. That produces zero stiffness:)

First, I apologize to Millercarbon for my snotty tone in the context of my reply to his post about springs and such. I find myself in an irritable state of mind probably due to months of isolation and jitters related to the upcoming election. Only my wife can stand to be around me lately.
Second, I must say for the second time that "we" are confusing "vibration" with the pure problem of controlling the motion of a speaker cone. The box has to hold the body of the speaker stable so that the energy generated by the amplifier to move the cone is converted only into motion of the cone. This is never perfectly achieved, of course. My point was that if you put the box on springs or rubbery mounts, then you defeat the effort of the designer to hold the frame or body of the woofer stably in space, while the cone delivers its energy to the air. Instead, the whole assembly is now able to use up amplifier energy in motion that is opposite to the desired application of the force applied to it."Vibration" is certainly a resulting issue associated with the effort to maintain rigidity of the mount, but controlling or dissipating vibrational energy or resonance is after the fact. Do we know of any commercially available speakers that are supplied from the factory with springy or rubbery feet? I cannot think of one.

Picture a naked woofer hanging from a string or springs in mid-air and trying to reproduce a bass tone. Can you see that it would bounce back and forth in directions opposite to the excursions of the cone?