just saw this on audiogon... interesting variation on the inner tube suspension....
Possibly with the addition of some oil filled dampers either side it might just work! The problem with springs is that they're erm .. springy; very little internal damping and therefore prone to oscillation. Here's an equally outlandish idea for front-end isolation I've been musing over. The perfect structural isolation of a component would be to cause it to levitate in free air in an entirely de-coupled manner. Next best, in terms of structural de-coupling, is to have a low-pressure gas support (with low resonant frequency) retained by as thin a membrane as possible. Any ideas? Clues: made of latex, they save lives and usually pink!
Nasty taste i'd imagine when blowing them up, yeuch, oh and how does one dampen them (and don't say with spermicide)
Sounds daft AK, but therotically an excellent solution! To solve the problem of putting 'nothing' between a CD player and equipment support an inflated Johnny gets very close! With low inflation pressure the resonant frequency (the frequency or rate at which they wobble when under mechanical load) would also be very low, around a few Hz – giving very high damping or decoupling at higher frequencies. Now I wonder, what's the mark-up on a pack or re-packaged and re-branded audiophile approved isolation rubbers..
Good work mosy, the only thing that might better it is the opposing magnetic solution, expensive audiophile ones are out there, but i wonder if that coud be done DIY?
Do you know something i might just try this, was gonna use those minimoto tubes, but i may try using rubber prophylactics instead could still sunstitute the inner tubes if it doesn't work.
The 'Relaxa' platforms I think they're called? Also aiming for a near-perfect state of de-coupling. I did consider magnetic levitation but there are problems. Bring two magnets of opposing magnetic polarity together and they tend to repel each other in a lateral fashion – they push away from each other side to side rather than vertically. This would require some sort of structural retaining to solve (and defeat the purpose of a 'free-floating' platform). The greater problem would be the large magnetic fields – definitely not a good idea close to electronic circuits. Think the chemists is a better bet! I'm not going to ask what “rubber prophylactics†are but go forth and experiment!
I can just see it now: *NEW* Russ Andrews "The Protector" Isolation Platform Using special low-pressure gas-filled isolating bladders made from high-grade audiophile latex (that's 'johnnies' to you and me ). Only £10,000 each so you can afford to get an extra for the weekend :lol:
well you know the finanance director of ssl, the maker of "durex" told us that there condoms are strong enough to be stretched over a wheely bin, so you have to think it should be strong enought to take significant weight. the only thing is that latex degrades and might need to be stopped from druing out..... i don't even want to go there.
On recommendation, I have been using a partially inflated inner tube, child's bike size (10" diam.), and this works well. Experimenting with oak cones at the mo.
Oh dear, this thread is asking for trouble. Surely your going to have to try as many varieties as possible to see which gives the best performance. Oh its like being 21 again.
Will analogue vs. digital be replaced with latex vs. polyeurathane? How about those jobbies made out of sheep bits?