This capsule type is a true dipole (bidirectional) transducer, operating with a single diaphragm. Its main axis is at a right angle to the capsule, and is marked at 0° and 180° with a red and a black dot respectively. The inherent qualities of a pure pressure-gradient transducer are readily observed in this capsule type: – Its sensitivity decreases at low frequencies. – The directional characteristic is extraordinarily independent of frequency. – Proximity effect is present.
|Equivalent noise level (CCIR)|
|Current consumption with 12 V|
|Current consumption with 48 V|