4066 OMNIDIRECTIONAL HEADSET MICROPHONE
Directional patternOmnidirectional
Principle of operationPressure
Cartridge typePre-polarized condenser
Frequency range20 Hz – 20 kHz
Frequency range, ±2 dBSoft boost grid: 20 Hz – 20 kHz, 3 dB soft boost at 8 – 20 kHz. High boost grid: 20 Hz – 20 kHz, 10 dB boost at 12 kHz
Sensitivity, nominal, ±3 dB at 1 kHz6 mV/Pa; -44 dB re. 1 V/Pa
Equivalent noise level, A-weightedTyp. 26 dB(A) re. 20 µPa (max. 28 dB(A))
Equivalent noise level, ITU-R BS.468-4Typ. 38 dB (max. 40 dB)
S/N ratio (A-weighted), re. 1 kHz at 1 Pa (94 dB SPL)Typ. 68 dB(A)
Total harmonic distortion (THD)< 1% THD up to 123 dB SPL peak, < 1% THD up to 120 dB SPL RMS sine
Max. SPL, peak before clipping144 dB
Output impedance30 – 40 Ω
Cable drive capabilityUp to 300 m (984 ft)
Power supply (for full performance)For wireless systems: Min. 5 V – max. 50 V through DPA adapter. With DAD6001-BC/DAD6024/DAD4099: 48 V phantom power ±4 V for full performance
ConnectorMicroDot
ColorBlack, beige or brown
Weight14 g (0.5 oz) incl. Cable and MicroDot connector
Microphone diameter5.4 mm (0.21 in)
Cable length1.2 m (3.9 ft)
Cable diameter1.6 mm (0.06 in)
PolarityPositively increasing sound pressure produces positive going voltage on MicroDot pin
Temperature range-40°C to 45°C (-40°F to 113°F)
Relative humidity (RH)Up to 90%