Ok. This is absolutely, positively, for sure the last time I will respond. I do not perceive that the FR64S causes any sort of audible distortion when used on my Victor TT101 with the Acutex LPM320 cartridge. I have heard the Acutex in several different tonearms; it was never so neutral as it is now in the FR64S. Earlier, I gave some reasons why even an undamped tonearm can avoid distortion caused by resonance, if the resonant energy is sinked properly into a much higher mass, such that the energy is dissipated as heat and not vibration. I believe this is the case with my system; the FR64S is mounted into the FR B60 optional base, which adds mass. The B60 is mounted into a custom made aluminum arm board which in turn is firmly anchored into a massive aluminum brace via a 1/2-inch diameter bolt that screws directly into the arm board from below the plinth. The energy transfer coefficient for this total ~6-lb mass taken as a whole is 1.0 or close to it, because it is all made of the same material or material that is closely related in terms of energy coefficient. Perhaps this is why the FR64S appears to add zero coloration.
The signal is ultimately heard over Beveridge speakers. These are among the lowest distortion transducers ever built.
