Sound production mechanism of alto compression waveguide equalizer

The utility model belongs to the technical field of sound production devices, and particularly relates to a sound production mechanism of an alto compression waveguide equalizer. The compression waveguide is mounted at the sound production end of the loudspeaker; the compression waveguide is provided with an inner cavity in a penetrating manner, and two ports of the inner cavity are a lead-in port and a lead-out port respectively; the equalizer is mounted in the inner cavity and is close to the sound production end of the loudspeaker; a compression tongue plug is arranged on the equalizer, and one end of the compression tongue plug extends to the leading-out opening; an annular sound wave compression channel is formed between the inner cavity and the compression tongue plug, and the width of the annular sound wave compression channel is reduced from one end of the guide-in opening to one end of the guide-out opening; sound waves emitted by the loudspeaker firstly penetrate through the equalizer and then enter