Suppressing back ground sensitivity at wide frequency range by narrow-angle directivity with line microphone method at mid-high frequency range and by cancelling back ground sensitivity with two capsules at low-mid frequncy range.
Easy to handle and operate by using general purpose 48V Phantom powering.
Sharper narrow-angle directivity can be gained because of long acoustic tube with square capsule being superior in space efficiency.
Mid-Low: Rear rejection by second gradient two capsules
||Back electret condenser x 3
||70Hz - 18kHz
(nominal at 1kHz)
|Equivalent noise level
||Rear rejection ON: 16dB SPL
Rear rejection OFF:15dB SPL
|Max SPL (1% THD)
||250mm x 22mm (diameter)