On Fri, Feb 07, 2014 at 08:58:49AM -0500, Rick Green wrote:
I'm not a mechanical engineer, but just from
observation
of instruments such as organ pipes, Marimba keys, and grand piano
bass strings, I imagine achieving a resonance <20hz in a physical
structure of ~30cm length would be a non-trivial exercise.
We're not talking about resonance in the tonearm itself (which
can also be a problem, but quite a different one), but the
resonance of the combination of the mass of the tonearm and the
compliance of the cartridge. See for example
<http://www.ortofon.com/support/cartridgetonearm-resonance-frequency>
Ciao,
--
FA
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