I have the P-200, which is all manual, belt drive, and the same arm as the P-300. Never had any resonance issues. I've had several cartridges on that, too, XV-15, Grado, Shure m97xE, even a Shure M91ED/SAS. I have both P mount and 1/2in mount headshells. The only mod I've done to this table is installed RCA Output jacks and stuffed all the crevasses with modeling clay. The P-200 is now relegated to needle-drop duty.