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FR64s & Orsonic Av-1s Effective mass ?

Hi Good folks!

I have an FR 64s with original headshell. Have ordered an Orsonic Av-1s/ 10 grams, to meet better compliance/ resonnance matching with higher compliance cartridges.

Any idea what the effective mass will be with this combination?

Would be funny to try for example how my London Decca Super Gold would work with this arm..😀


geddyen
geddyen OP
11 posts
 
I should mention that I guess the relative good result also has to do with  the vacuum ( flat record/ no suspencion cantilever) and " oil spring damped" plinth/ Basis Debut..
lewm
12,984 posts
 
As I implied in one of my responses to Raul, I think the coupling of the tonearm (any tonearm, but maybe especially undamped tonearms) to high mass is another form of dampening.  So, you're on the right track, IMO.
geddyen OP
11 posts
 
Yes, I was thinking about on what You wrote about the B-60, offloading the vibration energy. An interresting theory. By the way I do not have the B-60, but the arm is drilled directly in the Debut plint.
analogluvr
859 posts
 
The fr64 is an excellent arm. Raul has some strange opinions some times. I think he loves distortions😱
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cleeds
5,943 posts
 
lewm "As I implied in one of my responses to Raul, I think the coupling of the tonearm (any tonearm, but maybe especially undamped tonearms) to high mass is another form of dampening."

I agree absolutely. When I had the FR-64S, it was on an Oracle Delphi Mk3 with a special metal armboard that sounded way better than the factory-standard acrylic board. That combo, on the FR adjustable VTA base, was just incredible. As I mentioned earlier in this thread, I sold the whole package to a friend who still uses it. And it still sounds great. The various Orsonic headshells were also a major improvement, and helped match the arm to the cartridge.
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