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Quantifying Consistency in Loudspeaker System Production

This paper defines a new metric for production consistency of loudspeaker systems. The motivation is to improve stereo imaging of phantom sources. The measurement system’s consistency and three different loudspeaker designs are analyzed as examples to show how the metric can highlight inconsistencies. The analysis and summary metrics clearly highlighted (the artificially induced) inconsistencies. A simple classification system (from A to H) for loudspeakers is also proposed. It is hoped that this, or a similar, metric will be integrated into international standards as a way to help designers improve their products, production to improve their processes, and customers to better inform their purchase decisions.

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