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Figure 6


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(Left) Equivalent circuit derived from the mechanical sketch in Figure 5, using the impedance analogy. The subscripts a, b, c, h, m, p, s of the mechanical circuit parameters denote the armature, boundary, chassis, hinge, membrane, pin and suspension, respectively. The subscripts c, b of the electrical circuit parameters refer to the coil and back-emf, respectively. (Right) For low frequencies the kinetic energy of the system will primarily follow the yellow.

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