A method is described to automatically verify individual loudspeaker integrity and confirm the proper configuration of amplifier-loudspeaker connections in sound reinforcement systems. Using impedance sensing technology in conjunction with software-based loudspeaker performance modeling, the procedure verifies that the load presented at each amplifier output corresponds to impedance characteristics as described in the DSP system’s currently loaded model. Accurate verification requires use of load impedance models created by iterative testing of numerous loudspeakers.

Authors: Dalbjörn, Klas; Berg, Johan
Affiliation: Lab.gruppen AB
AES Convention: 125 (October 2008) Paper Number: 7526
Publication Date: October 1, 2008
Subject: Audio Equipment and Measurements

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