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Re: I can answer one of those.

Mark,

Tubes raised an interesting point in the following question. It is a situation to which I don’t believe I fully know or understand the solution.

What effect does silicone dampening make on the moment of inertia or effective mass of the arm?

I’m not sure this follows the model you are suggesting. However, I feel you are just the person to sort out the truth.

You state that damping increases the period, which corresponds to reducing the resonance frequency slightly. I would agree wholeheartedly if the damping were applied to the cantilever directly. However, when the damping is applied to the tonearm, I have a feeling it might actually increase resonance frequency. I would be very grateful if you could find the mathematical model that applies to this scenario.

Thanks,
John Elison


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