Dual Range Horn with Acoustic Crossover

摘要

A new approach has been developed to combine midrange and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between the mid frequency passage and the high frequency passage, so that a smooth combination of the two frequency bands is achieved at the entrance to the horn bell. Thus each frequency band has nearly identical dispersion, and the two sources have equal delay.