[Don Pearce[_2_]]

On Fri, 12 Dec 2008 15:41:51 -0500, "Powell"
wrote:


"Don Pearce" wrote

Sharp spikes are often put on the bottom of speakers to keep
them from moving when a loud bass note is hit.

The purpose of the spikes is to allow the speaker to stand
on carpet without wrecking it.

Perpetuating USEnet myth, I see, go do your own
homework.

For maximum effectiveness spikes should not be run
through any type of carpet interface (carpet/foam).
If you have high quality carpet, spikes just won't
penetrate the carpet/pad substrate. The tightly
woven jute backing and under pad are the problem.
The conical shape of spikes simply will not couple
to the sub-floor... and I mean tightly. While it might
appear (feel) to you that your spikes are firmly in
they are still supported by the carper/pad. Sound
pressure measurements and auditioning indicate
only a poor improvement in fidelity if used in this way.


Nonsense - you clearly have no experience in this area. The spikes do
not penetrate initially, but within an hour or so they have worked
their way through the jute backing and are making perfect contact with
the floor beneath. Meanwhile the valuable pile remains intact.

As for your gibbering about sound pressure measurements - please don't
insult this group with such tripe. Everyone else on here clearly knows
a great deal more than you.

d