Smart amplifiers are a new generation of amplifiers using a real-time feedback loop to ensure the speaker stays within its physical limits, and they are capable of delivering significantly more output power than previously possible. This jump requires the definition of new performance ratings for micro-speakers. The purpose of this paper is to recommend test procedures and methods for the specification of a maximal speaker-membrane excursion (Xmax) suitable for an application that uses a smart amplifier. The proposed set of criteria to characterize this usable excursion should allow micro-speaker vendors to provide optimized and reliable solutions to their customers.
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https://aes2.org/publications/elibrary-page/?id=17437
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