Phonograph cartridges are a balanced source. That is why the ground wire is needed, as it is the ground of the balanced system. The thing is, when employed as a single-ended source, the capacitance of the interconnect plays a bigger role when the ground cable is connected.
By running a balanced preamp that ignores ground at its input, you get around this problem. Truly balanced systems tend to be very cable-immune.
If you don't want to replace your preamp, you might have to consider a lower capacitance cable between the arm and preamp.
By running a balanced preamp that ignores ground at its input, you get around this problem. Truly balanced systems tend to be very cable-immune.
If you don't want to replace your preamp, you might have to consider a lower capacitance cable between the arm and preamp.