collapse expand iconDescription

The DPA Microphones 4066 CORE Omni Headset Mic offers clean and transparent sound quality with lots of headroom. Due to its pristine sound and durability, for years the 4066 headset mic has been the chosen solution for broadcasters, shows on Broadway, and many events taking place in auditoriums and lecture halls.

The headset construction is unique. You can detach the mic boom from the headset mount to switch it to either the left or right side and then reattach it. Humidity, often an issue in theatrical applications, is not a problem. This microphone is constructed with a double-vent protection system and a drop stopper on the microphone boom. Also, the materials inside the mic are water-resistant. These design elements make it very difficult for the microphone to fail due to humidity.

The microphone’s sensitivity is 6 mV/Pa. This matches the level of the human voice to the general input sensitivity of most wireless transmitters. If powered correctly, the microphone will be able to handle very high sound pressure levels up to 144 dB SPL before clipping occurs.

IP58 Certified
All CORE by DPA technology microphones are IP58 certified. This durability is achieved through several defense mechanisms:

Water-repellant nano-coating of the cover and housing
Hermetic sealing of the sensitive amplifier at the core of the mic
Dual gold plating of the diaphragm

About Omnidirection Microphones
An omnidirectional microphone has sensitivity at all angles—in principle picking up sound equally from all directions. This gives you extremely natural and realistic sound compared to a cardioid mic. Omni mics are often used for picking up ambient sounds, as well as miking a large sound source such as a choir in a recording situation. Unfortunately, due to their pickup pattern, omnis can also produce a lot of feedback in live situations.

When used close to the sound source, the equal frequency response makes these mics a flexible addition in your audio toolbox. It will often give a more natural sound and can handle extremely high sound pressure levels. DP omni mics do not suffer from proximity effect and are not as sensitive to wind, pop or handling noise.

collapse expand iconFeatures

  • Resistant to humidity
  • Double-vent protection system
  • Modular adapter system fits most professional wireless systems

collapse expand iconSpecs

  • Directional pattern: Omnidirectional
  • Principle of operation: Pressure
  • Cartridge type: Pre-polarized condenser
  • Frequency response: 20 Hz - 20 kHz
  • Effective frequency range ±2 dB: Soft boost grid: 40 Hz - 20 kHz, 3 dB soft boost at 8 - 20 kHz. High boost grid: 40 Hz - 20 kHz, 10 dB boost at 12 kHz
  • Sensitivity, nominal, ±3 dB at 1 kHz: 6 mV/Pa; -44 dB re. 1 V/Pa
  • Equivalent noise level, A-weighted: Typ. 26 dB(A) re. 20 µPa (max. 28 dB(A))
  • Equivalent noise level, ITU-R BS.468-4: Typ. 38 dB (max. 40 dB)
  • Distortion, THD < 1% - Legacy: 120 dB SPL RMS, 123 dB SPL peak
  • Distortion, THD < 1% - CORE: 134 dB SPL RMS, 137 dB SPL peak
  • Dynamic range – Legacy: Typ. 97 dB
  • Dynamic range – CORE: Typ. 111 dB
  • Max. SPL, THD 10%: 144 dB SPL peak
  • Rated output impedance: 30 - 40 Ω
  • Cable drive capability: Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
  • Power supply (for full performance): For wireless systems: Min. 5 V - max. 10 V through DPA adapter. With DAD6001-BC: P48 (Phantom Power). Will work from 12 V
  • Current consumption: Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR Adapter
  • Connector: 3-pin LEMO
  • Color: Beige
  • Weight: 14 g (0.5 oz) incl. Cable and MicroDot connector
  • Microphone diameter: 5.4 mm (0.21 in)
  • Cable length: 1.2 m (3.9 ft)
  • Cable diameter: 1.6 mm (0.06 in)
  • Polarity: Positively 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%

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