but it doesn't act as some sort of temporal sponge sucking RFI out of the ether (unless it's a material that exists outside our current understanding of physics that is).
I must admit a temporal sponge would be absolutely fantastic for a multitude of reasons not just audio certainly would help many speaker designs phase correction issues though only relatively small amounts of 'time sucking' would be required say 2-8m/s
Mind you on certain UK design possible more like 2-3 seconds for bass catch up duties lol.
No amount of temporal sponge will help naim so apologies on that score.
I'm with Jerry on this particular subject the more squidgy the material the isolation device is made from perceptually it does seem to have a energy drain effect and on certain brands of electronics it is more than noticeable. That said for some listeners it maybe what they are looking to achieve.
Look at what you are trying to achieve with the various devices that pre-port to improve the sound by isolating / energy conversion or absorption of vibrations related with electronic equipment.
With speakers it is easy you wish to control the internally generated momentum by the physical act of a cone moving at different frequencies and volumes this energy inside the speaker cabinet has to go some where, via spikes / plates?
Not a very effective form of kinetic energy control.
I would suggest you can various aftermarket devices and all to some degree will have an effect of the overall sound, where YOU feel it has a positive effect or not only you can decide in your environment
This is purely derived by the method of vibration / energy correction of the device employed, some heighten leading edge transients, other give a broader spectrum of frequency capture of energy which can have a smoothing effect to the sound, other can effectively 'over damp' the sound likening the listen being transported to what hifi reviewing suite when just about every frequency above 12Khz is totally absorbed.
For myself the best methods of improving speaker / room interactions after careful placement and RTA mapping would be a suspended speaker platform design with a dedicated isolation device between the platform and the speaker itself
This is easily provable with even a simple seismometer (which can be used to test ANY isolation device in fairness) will detect any chance in measurable external kinetic energy transfer a simple before and after plot will be obvious (as will any detectable audible differences)
With electrical equipment you have other factors involved, as well as transformers both torrid, E frame and encapsulated which all generate vibration to varying degrees which may or may not interact with casework and other internal components dependent of frequency ranges.
Every time you pass an electrical current through a capacitor/resistor/inductor you generate a definable amount of microphonics whilst in itself possibly not that adverse if your equipment had one of two components, the majority of audio electronics have hundreds of these devices usually surface mount accumulate, they can produce undesirable energy patterns (both Kinetic and electrical) which may also work against what you are trying to achieve sonically.
When design new digital equipment we always employ an rfi / emi engineer to aid us in how best to layout circuit boards, where to place electrically noisy parts and how best to isolate from making to much of an impact.
There are various ways of minimizing RFI and EMI issues for those wishing to go in-depth with this subject some guidelines here
Useful information With regard to question posed with BR products, certainly they are no temporal wick which can absorb stray broad band emissions for distant star clusters
or have the ability to demonstrate positive time displacement not sure where that came from and being honest deserves a piss take smiley.
The product is a passive system that aims to mitigate the threat coming from vibration for all three categories. It does it by separation, collection and dissipation methods that are applied in proportion to the assessed threat from vibration.
Different electronics produce different amount of amounts of rfi dependent on where they are amplifiers, dac's CD player streamers etc
Now we have CE laws which state that these products must release more than an accepted safety margin which is addressed when the products are presented for CE testing.
Now many manufacturers tyoe approve products, by which they state that to the best of their en-devours all reason cause has been taken to ensure that all CE directives have been adhered to.
Some products react in different ways to different isolation devices, however even those that work on the similar principles do not deliver identical results. This can be attributed for different reasons.
My suggestion would be to try the various devices that interest the individual and work out for yourself if each manufactures products work for you in your own environment. Nothing more or less.
The comment concerning PC's and said devices, most people need to make themselves aware of the underside of a PC case, they are not completely flat and have more surface variations so make sure that the complete surface area is in contact withe the same surface area of the pc casework.
EMI explatationOne over ridding factor with many of these devices and or cables and magic boxes is psychoacoustics where those that unequivocally believe that they will hear no difference what so ever even if there is a difference clearly and repeatably heard by others.
And those that steadfastly convince themselves they will hear a discernible difference even if all those other around clearly hear NO difference, the human mind both amazing, wonderful and unfathomable at the same time.