Loudspeaker arrangement for radiation of sound waves in e.g. meeting hall, has electro acoustic transducers and set of resonators aligning to different frequencies and radiating sound waves produced by transducers

摘要

The arrangement has electro acoustic transducers (26, 29, 30) and a set of resonators (15-22) aligning to different frequencies. The resonators radiate sound waves produced by the transducers. The resonators are arranged as hollow resonators. The resonators provided for the radiation of low tune range are arranged as tubes and the resonators provided for radiation of high frequency range are arranged as metal tubes.