For best performance, the tonearm and cartridge must be matched. All cartridges will not work with all tonearms,
and vice versa. To insure a proper match, one must be aware of the mechanical specifications of both the arm and
phono cartridge. To see how these characteristics interact and determine compatibility, we must first understand the
dynamics of the relationship. Any cartridge/tonearm combination will exhibit resonance at a specific frequency
(or frequencies). This resonance is due to the interaction of the cartridge (acting as a spring), and the weight of the
arm (acting as a mass). The "springiness" of the phono cartridge is described as compliance, the weight of the arm is
specified in mass.