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I've read and just want to confirm that there is an issue with using this pairing? Something about the compliance on the Shelter being too stiff? I thought stiff was good with a relatively heavy arm like the JMW? Just a newbie poking around though so please educate me if I'm wrong.
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This has been the subject of many threads, and with a lot of misinformation IMHO.I have used the Shelter 501 very successfully with my JMW 12 for quite a while. The JMW 10 has similar if not exactly the same characteristics. I use some of the damping "syrup" in the arm bearing. Many others, including those who have used it with the JMW 10, have written the same.
It seems that much of the naysaying originated with a contributer to the Audiogon analog discussion group who wrote that he has never actually heard this combination, but is opposed to it for theoretical reasons. To which I say Yucch!
That being said, there was a very noticeable improvement in performance when I upgraded my arm with a dropped counterweight and a JMW 12.5 upper bearing weight. While this arrangement may have been especially beneficial with the Shelter cartridge, it was after all an arm upgrade, which should be helpful with any cartridge. That's what upgrades are for--to make it better.
In any event, if you want to inquire further, I suggest a search.
I'm assuming that the 901 and 501 have similar compliance numbers. If that is true, you are correct and the match is not according to Hoyle. That said, I really liked my Shelter 901 on my JMW10, particulary the bass, and will probably go back that way when my current cartridge (Lyra Helicon SL, better match on paper, better midrange, less excitement, less suited to my particular taste)gives up the ghost.
What does a cart arm mismatch sound like? What is so bad about the mismatch?
I think the things to look out for are poor tracking and volume levels that vary with frequency?
Help oh yee who know these things.
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