This paper presents a new loudspeaker system which is useful for sound reinforcement systems. The loudspeaker system is composed of a linear array of loudspeakers driven by the electric current having adequate delay. A convenient method is proposed for the determination of the delay time to be given to the driving current of every loudspeaker of the array. The proposed method is proved to be useful by the numerical computations and experiments. The restrictions imposed on the architectural design due to the setting of the loudspeakers for good sound reinforcement have been removed, as the direction of the array can be arbitrarily chosen.
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