In article ,
GregS wrote:
In article ,
(Morgan) wrote:
Hi everyone,

I am designing a unique pair of speakers that will have an enclosure
with the woofer mounted on the top facing upwards and no other
speakers in the case. This is similar to a subwoofer design except
that the speaker will be facing upwards. Any ideas onto what value of
Q I should shoot for in this enclosure. Also any tips about building

I guess Q can have other effects. If the mechanical Q of the driver is too high,
it may sag more than a driver with a lower Q. This may or may not be
true depending of the
construction.

The mechanical Q is a measure of the fristional losses in the
suspension. As such, it's difficult to imagine a causal linkage
between Qm and how much something will sag. That's a function of
the mechanical compliance and the moving mass of the driver.
Now, over a period of time, there may be some cold-flow effects
resulting in the driver taking on a permanet "set."

But I suspect what correlations MIGHT exist between Qm and
sagging are coincidental rather than causal.
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