Sistrum or Neuance or...?

I would like to see the data on the linearity of energy transfer in this device. The only way I'm aware of to attempt to selectively choose between the tendency of floorborne vibrational energy to flow into the rack vs. the tendency of component vibrational energy to flow out is to choose materials with selective resonant frequency response. As everyone knows, this produces the colorations commonly associated with cones.

Twl writes:
"In our experience, it is the airborne vibrations that are considerably more deleterious to performance, and that the proper handling of these airborne resonances is far more important than floorborne considerations."

Are you really saying then that Sistrum's product is intended only for audio systems that
a) are cited on slab flooring
b) become mostly useless if the equipment is in a closet (no airborne transmission)

I also infer then that your rack would offer no help for a turntable where the stylus tends to bounce around with footfalls? (One obvious example of the importance of floorborne vibration).

If floorborne vibration isn't important, then why in the world do you suppose that studios and listening room designers use specially reinforced flooring?

Twl, I suspect that there is more to your product's design than you are communicating here, and that it really would be good to have one of the designers answering questions. Salesmen have a difficult position, understandably.

Twl -

"I think it far more likely that these same people lack the necessary technical understanding to grasp the obvious explanations that have been put forth several times on this thread already."

Your statement is that your rack's design rests on a theory of unidirectional energy flow based on the 2nd law of thermodynamics. There is nothing obvious about this 'technical explanation' except that it is a simplistic and inadequate analysis of the transfers of energy involved. The second law of thermodynamics says that energy flows from a source to a sink, that it takes work to force it to flow in the opposite direction, and, (in the fine print) that this flow often becomes irreversible because of the difficulty of reassembling the dispersed energy.

Let's neglect for a moment the building structure sitting between your rack and the earth. Earth's crust has its own vibrational frequency sensitivity - it does not propagate higher frequencies well but readily propagates low frequencies (trucks, earthquakes, low & constant seismic activity). The directions and distance of propagation vary with crust structure and force magnitudes.
The meaning of this from a rack's point of view is that earth can be a sink at some frequencies and a source at others.
As to your statement about anything sitting on the floor/ground moving along with the floor/ground : you're missing the point. The force/energy analysis of a rack sitting on a vertically vibrating floor is not different than that of a component on a shelf experiencing airborne vibration - but is more complicated. It now includes gravity as well as higher magnitude translational forces.

The reason for the lack of response to your statements is that anyone trained in physics or engineering knows that adequate analysis of these energy transfers is a complicated process of theory and measurement. I don't happen to think that Audiogon is the right place for such a discussion, and I agree that the thread should be allowed to die.

A few years ago, a post like twl's would have brought anger from the majority of audiogoners. No more. It's time to recognize that Audiogon has simply become an open advertising and marketing platform.

Sad but those are the times. Time for audiophiles to go and leave the site to the dealers - they can talk to each other.

twl's post is straight ad copy. Throw in a price list and his phone number, and he would have had to pay to say the same thing anywhere else. Step right up and check out our 30 day money-back no-risk no-liability home test options folks. Everybody loves us.

Take this thread, compare to threads of a few years ago (e.g Redkiwi's posts on vibration experiments), and then extrapolate into the future. Exponential marketing creep.