If the JMW 9 tonearm is indeed 7.7 grams effective mass and the Benz cart's weight is 9 grams and compliance is 15, then the calculated resonant frequency is 10Hz, which is exactly where you want it to be (acceptable range is 8 - 12 Hz). If the JMW 9 tonearm effective mass is closer to 9 grams (as per your discussion with Harry), then the resonant frequency with your Benz cart is 9.7Hz, so either way, your Benz cart should be a good fit. Hope this helps.
JMW 9 effective mass?
I read on vinyl engine that the effective mass of the JMW 9 is 7.7 grams. If this is true, that would make the JMW 9 a LOW MASS arm. My cartridge is supposed to be used with Moderate to High mass arms. Its compliance is 15. I think I have a mismatch. Why doesn't VPI publish this information so I would not spend $1,500.00 on a cartridge that sounds wrong on my table. I have a Benz H2.
I was told that my arm is in fact a moderate mass arm. Well, where are the specs indicating this? I want to see for myself. If I have a low mass arm, I should be using high compliance cartridges, correct?
Where do I get this information, it did not come with my tonearm, it just had information on installation
What is a good High compliance cartridge?
I was told that my arm is in fact a moderate mass arm. Well, where are the specs indicating this? I want to see for myself. If I have a low mass arm, I should be using high compliance cartridges, correct?
Where do I get this information, it did not come with my tonearm, it just had information on installation
What is a good High compliance cartridge?
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- 19 posts total
- 19 posts total