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Planar ribbon electro-acoustic transducer with high SPL capability and adjustable dipole/monopole low frequency radiation
Planar ribbon electro-acoustic transducer with high SPL capability and adjustable dipole/monopole low frequency radiation
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机译:平面带状电声换能器,具有高SPL能力和可调的偶极/单极低频辐射
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摘要
A planar electro-acoustic transducer has an adjustable back cap option that provides a dipole/monopole radiation that has different roll-off characteristics. The planar electro-acoustic transducer includes a diaphragm and a plurality of front and rear magnetic bars. Each magnetic bar has a side facing the diaphragm and disposed adjacent thereto. The thickness of each rear magnetic bar is larger than the thickness of each front magnetic bar. The thickness of each front magnetic bar is less than a quarter-wavelength of a cavity resonance at 10 kilohertz. The planar electro-acoustic transducer also includes a non-magnetic acoustically transparent metallic mesh that is disposed coplanarly with the sides of the front and rear magnetic bars that face the diaphragm.
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