Low-audio-frequency energy and speed sense superposed sound equipment

The utility model discloses a low audio frequency energy and speed sense superposed sound box, comprising a housing, and one side between two ends in the housing is fixedly connected with a mounting rack. According to the low-audio energy and speed sense superposed sound box, the first mounting slots are fixedly connected to the two ends of one side of the inner side wall of the shell respectively, the middle grating is inserted into the first mounting slots and the second mounting slots respectively during use, and the insertion stability is improved through the stabilizing pads; by means of the half-pass design of the middle grating, low-frequency 30-120Hz is coupled and superposed with 2.35 DB, one side of the mounting frame is fixedly connected with the inner inclined plate, an included angle of 69.1 degrees is formed between the inner inclined plate and the mounting frame, so that the low-frequency speed is increased by 0.6 millisecond compared with the conventional design, the frequency is higher, and t