Sistrum or Neuance or...?

As another manufacturer of isolation products (Machina Dynamica), one thing not discussed very often is the importance of seismic activity in the overall scheme of things. The continuous motion of Earth's crust (along w/ other low freq. generators) produces quite a bit of energy in spectrum around 1-10 Hz and higher, w/ peak in vicinity of 1-5 Hz. Some seismic energy higher up freq. scale can be dissipated with damping and other techniques; however, dealing with the very low freq. stuff below 5 Hz is a horse of a different color. IMHO platforms and stands that directly address the sesimic issue are the only way to fly, especially in view of the fact that mass-on-a-spring devices are effective for higher vibration frequencies as well. In fact, IMHO airborne and component vibration is "relatively" innocuous compared to the sesimic type. In the end, whatever works is a step in right direction. My 2 centavos.

Geoffkait, I have a Dennensen air suspension platform for my DD turntable and can see your point in lowering the resonant frequency w/ springs. That's what the platform works. I also used to live one block from railroad tracks and it was pretty bad how the entire house rattled when those cargo trains would pass. Those vibrations were coming up 'from the earth', so I don't see a rack like the Sistrum being able to 'drain them back'.

Are you implying that vibrations cannot be "drained to earth" as Sistrum claims?

Psychicanimal - I did not mean to imply that. Anything not "properly isolated" from structural vibration (seismic, trains, traffic, etc.) will certainly move, such as the entire house, as you pointed out. I tend to focus on the frequencies of vibration in range 0-10 Hz, as I think this is where the real problem is (for audio).

Dissmissing Sean's posts as "petty" (Budrew) and mere "ridicule" (Sistrum) is a shame since he built up a case that is at least worthy of some technical explanation. Unlike some others, I think knowing how device works gives an audiophile more control and power than simply trying the device and "seeing" how it does. A "gracious" return policy is not enough for me to trial-to-buy.

I can empathize why Sistrum may not want to get in to it, but that is taking the lower road, especially considering other manufacturers have responded to these types of debates with their design reasoning. Adding a little salt to their non-answer is that Sistrum has repeatedly advertised in these forums. I personally am left with a hole in Sistrum's logic (calling is pointless) and a lesson to become more self-sufficient in audio. Thanks Sean and Joe Ciulla.

Ouch! Sistrum does it again. TWL, better go after the *mature* waitresses full time! I just had my breakfast (that's right--at 2:30 PM!) at the local diner. I mean, they might be *mature*, but all that walking back and forth keeps them in shape! Some dental work might be needed.

Ohlala, ask member Jahaira ( José García ) for a picture of his DIY rack. Well thought out, with shelves that can be tuned for each separate component. It's the real deal.

You see, Sean can't be fooled since on top of all his knowledge and experience he's got a Moca wood board I gave him. He knows what the real deal is...Moca is about as perfect as it gets.