Yes, both the Tube Box DS and the JD9 provide four different input capacitance settings, the values being 47, 147, 267, and 367 pf for the Tube Box, and 47, 100, 150, and 220 pf for the JD9.
Either of those choices, in combination with the selection you will be able to make between the short cable having low capacitance and the longer stock cable having higher capacitance, should allow you to optimize the capacitive loading of just about any moving magnet cartridge.
Although I think there may be a few cartridges around for which 500 pf or so is optimal, which you probably wouldn't quite reach with the long cable and the 220 pf maximum setting of the JD9. I wouldn't let that be a factor, though, in deciding whether or not to purchase the JD9. If you go with the JD9, just avoid choosing a cartridge for which the minimum recommended load capacitance is higher than around 400 pf or so.
Regards,
-- Al
Either of those choices, in combination with the selection you will be able to make between the short cable having low capacitance and the longer stock cable having higher capacitance, should allow you to optimize the capacitive loading of just about any moving magnet cartridge.
Although I think there may be a few cartridges around for which 500 pf or so is optimal, which you probably wouldn't quite reach with the long cable and the 220 pf maximum setting of the JD9. I wouldn't let that be a factor, though, in deciding whether or not to purchase the JD9. If you go with the JD9, just avoid choosing a cartridge for which the minimum recommended load capacitance is higher than around 400 pf or so.
Regards,
-- Al