Impedance analysis of subwoofer systems
Arthur P. Berkhoff · University of Twente Research Information · 1994
The electrical impedance of four low-frequency loudspeaker systems is analyzed. The expression for this impedance is obtained directly from the acoustical analogous circuit. Formulas are derived for calculating the small-signal parameters from the frequencies of impedance minima and maxima of two fourth-order and two sixth-order systems. Results of measurements are presented for two sixth-order systems.