909:
just to further the point, this weekend I did some driver break-in and pumped 20 Hz to a set of tweeters at low levels ...
Also, I have done some spice simulation of a MM cartridge and often times, you're better altering the R and not the C loading. For example, the cartridge I'm looking at is a MM cart with 45mH inductance. The best loading seems to be 100pF (including cables) and 22K input impedance. I need to measure the capacitance of the cables, but I'm guessing they are not much lower than 100pF, so just a small amount of capacitance is needed.