Here ya go! Do the math!
There is the math as @yogiboy said, then there is the occasional outlier in tonearm - cartridge synergy which you may get some input on if you mention what specific tonearm ( head shell etc ) you are referring to :)
First o all to use provided calculator I need to confirm that static compliance at 35 micron/Nm given in Frog specs transtale into 17.5 micron/Nm dynamic compliance @ 10Hz. If this is true the calculated resonant frequency is 6.98Hz so at the lower edge of the rang.
My current tonearm is Origin Live 12” Enterprise C (3rd generation). Thank you for your input.
I wouldn't advise using the Frog on such a heavy arm. It is a medium compliance cartridge, van den Hul's reference arm is an SME V with 11g effective mass. His test arm in the workshop is the Technics EPA 100 which has en effective mass of 12g.
You run the risk of the suspension collapsing prematurely.
As an aside van den hul will tweak his cartridges to match the arm used. I installed a Colibri custom made for the Kuzma 4Point11 at 18g, but personally I would not use a vdh ( even custom built ) with an arm with effective mass any higher than that
I believe european standard is the only one that you do not have to divide or multiply. Japanese multiply by 1,5-2 and US divide static by 2.
The compliance of the Phasemation PP1000 8. It's much lower than the van den hul.
The van den hul frog has a dynamic compliance of 14, static compliance of 28.
The phasemation is a much better match for your arm.
@petg60 Had no idea that one should divide US compliance figures by 2. That’s VERY useful information. And it explains why the same wand works for a Grado and a Koetsu, which I had failed to understand.
The compliance of Phasemation is given at @100 Hz, so to ensure that is comparable with VdH dynamic compliance @10 Hz should be multipled by 2-2.2.
In te frequency calculator we should use dynamic compliance value @10Hz.
re the Phasemation - in that case the Phasemation is medium compliance - quite unusual for such a ow impedance MC.
It doesn't alter my view on the van den hul - I have sold and set up several over the years.
Here's van den hulls philosophy on arm mass & compliance -
His recommended tracking force for the basic Frog is 1.35 -1.6g and recommended arm mass for the original Frog was 6-10gm effective mass. The Colibri range are worse for heavy arms due to the short cantilevers.
Here's some comments by van den hul on heavy arms -
Interesting. I have a VdH Crimson Strad XGW on a 12" Reed 3P cocobolo arm with effective mass of 18g and it tracks fine and sounds great. After 200 hours I sent it to VdH for inspection and re-adjustment if necessary thanks to John McGurk and there was no report of any suspension problem or advanced wear.