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Plinth mass vs. Foundation mass

In pursuing my analog education, I perused an old thread
on here, a long thread, about Panzerholz plinths.

This thread, along with numerous others, got me to
formulate the following question:

In the general attempt to isolate the platter & cartridge
from vibrations in the rest of the universe, where is the
added mass more/most effective, in the plinth or in the
mounting base ?

I suppose a 100-lb wood plinth sitting upon a 500-lb stone
table would be fairly effective. But what might be a more
"compact" solution ? Is it too subjective to ask where
is the point of diminishing returns ?

Thank you in advance for insights & ruminations.
noslepums

Showing 1 response by atmasphere

atmasphere's avatar
atmasphere
12,088 posts
 
The coupling between the platter and the tonearm must be exact. If the platter is moving with respect to the arm, the cartridge will interpret that as a signal and a coloration is thus introduced.

Thus the plinth should be utterly rigid and devoid of vibration. Mass is good but its better if its non-resonant, so long as rigid coupling between the elements is maintained.

However the above requirements are met is not so important as the fact that they are indeed met.
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