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Re: disagree, with reservations, complications, & One Overcooked Analogy / long

I think that it is easy to get the wrong impression with regards to cantilever armboards. One such impression is that because cantilevers are known as one form of spring, that all cantilevers are springs. Not so. A cantilever can be made into a rigid unmoving mass......such as a Teres or Galibier armboard...or architecture drawn by F.L.Wright, etc.

Another is that because cantilevered armboards are not as physically thick as the rest of the plinth/base, that they somehow lack integrity.

I say how much mass in an armboard do you need anyway?

Further, what about acoustic resonance egress? Vibes traveling out of the arm and into the armboard. Would not this be facilitated by presenting said vibes with a tapered mass, thinner, then thicker material to flow into rather than one solid mass to reflect away from?

If I understand Analog Guy's comments correctly his concern is that an outboard perch, such as a cantilevered armboard can result in a "lever effect" commensurate with the distance from the point of attachment, or, to say it in another general way, an increase in the amount of "micro motion" that the tonearm must suffer due to the way that the turntable is situated on its base, floor, environment etc. This might be part of an explanation as to why the Teres is a turntable which favors high mass sitings. Conjecture on my part too.

Agree with your comment that this is an area where the "science dudes" should explore more definitively, or even with any validity. At this point I think what's needed are measurements to support the claim. Don't have any right now. There's just this thing about a Teres armboard that seems to work, is all.

-Steve


user510's system

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