"Kalle Heinänen" wrote in message
...
Ironically, a perfectly rigid stand won't work at this either,
because a perfectly rigid stand is incapable of receiving energy.

Do you have an educated guess - if my twisted metal stand will affect the
sound somehow, then how does it affect? Maybe slightly dampen some of the
lower frequencies?

It won't dampen anything. It will simply allow the cabinet to ring like a
bell. Do you want your speaker to be a carillion?

Maybe the twisted piece of metal can even act as a comb
filter? Could it even possibly reduce transient playback?

Any ideas what kind of music or test signals I should listen to if I build
this stand and then test it out?
Steel is not a good absorber. Commercial steel stands are frequently
designed to be packed with sand, because the sand takes it from the steel.

There are two areas that audiophiles sometimes notice. In the midrange, the
speaker cabinet can radiate as much sound as the midrange, at a particularly
strong resonance. You may be able to hear this as an extra unwanted tone. It
is sometimes also felt that the bass is compromised. The listener may feel
that the bass is too strong, or "one note", due to the radiation from the
cabinet.

Do you perhaps have an opportunity to make the top of the stand a pan that
could hold:

1. concrete?
2. clay and gravel?

You can lay on top of the composite another sheet of steel, with slight
spacing, so it would not detract too much.

There are many sophisticated materials specifically for damping vibrations.
Typically, these are layered: sandwiches of wood and lead, gypsum sheet,
etc. But the simple solution is to use steel in boxes and tubes, because
this is inherently rigid, and attach the speakers to the stands using a
material such as Blue-Tack.