| 摘要 |
The invention finds application in the field of audio engineering, and it serves for amplifying the radiation within the low frequencies domain, the phase frequency response being improved. The system consists of two passive diaphragms coaxially fixed to each other, said diaphragms having different dimensions and being situated in a loudspeaker enclosure together with an active speaker, which is placed in one and the same chamber with the smaller passive diaphragm. The two diaphragms are isolated from each other in terms of acoustics by means of a mechanical partition. The coaxial diaphragms may radiate in opposite directions, in such case the mechanical partition being disposed externally to the diaphragms. Where the coaxial diaphragms radiate in the same direction, the mechanical partition is disposed internally to the diaphragms. |
