Paul P wrote:

As I understand things, mechanical isolation is exactly what spikes
do. Maybe they can transmit some high frequencies but I don't see
them able to transmit low frequencies since the point of the cone
would have to vibrate at those frequencies. If the point is on
something rigid, like a slab of something, it's not going to move
much.

Rigid materials provide mechanical coupling. I don't understand how
being pointy would make any difference. Squidgy materials have 'give'
that attenuates the coupling.

It's a basic matter of mechanical engineering, not unique to audio.
Every anti-vibration device I've seen involved things like rubber and
maybe springs, but never spikes.

What you need is a nice thick sheet of neoprene rubber instead. Then the
sound will come from your speakers and not from whichever bits of your
building happen to radiate the coupled vibration. If you have carpet and
underlay then the neoprene probably isn't necessary.

I can see low frequencies moving quite easily through neoprene and
carpet.

But not as easily as through a rigid object, whatever its shape.


--
Richard Lamont http://www.lamont.me.uk/

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