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| Date: |
February 13, 2008 at 11:51:42 |
| From: |
m.x., [213.164.91.2] |
| Subject: |
Re: help needed, enclosure vibrations |
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Hi,
instead of a spectacle I
have a full plate.
Yes it is very stable.
However, at 160 Hz the sides
start to vibrate and I guess
that there are small gaps that
open and close, and that makes
a rattling noise.
In other words: I suspect that
the bracing plate is not very tighly
glued to the 4 walls, and there are no
screws to enhance the construction
there. It is just a 22 mm egde
glued perpendicular to the plates.
It is definitely not the cone
or magnet or basket.
Between braces (which make the nodes)
each wall will form a hunch or be sucked
in at some characteristic frequency,
depending on specific mass and stiffness
of the material. It can not be prevented.
m.c.
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Posted with TalkShop version
2.76 BETA |
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