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The d:screet 4660 Heavy Duty Omnidirectional Microphone, Normal SPL, Black, MicroDot termination, no adapter included.

Made for situations where you require maximum security and where the visual size of the mic is less important. The d:screet™ Heavy Duty Mic Series features a stainless steel housing, a heavy-duty cable relief and a thick 2.2 mm (0.09 in) cable. d:screet™ Heavy Duty microphones are a more robust version of the original mics they are based upon.

Available in four colors: black and beige.


  • Toughest miniature microphones
  • The most rugged and reliable version of DPA miniatures
  • Stainless steel housing, heavy-duty strain relief and thick cable
  • Exceptional audio quality
  • Uniform, consistent sound between DPA mics
  • Sturdy but small for flexible and easy concealment
  • Modular adapter system fits most professional wireless systems
  • Specifications

    Directional pattern
    Principle of operation
    Cartridge type
    Pre-polarized condenser
    Frequency range:
    20 Hz - 20 kHz
    Frequency range, ±2 dB:
    Soft 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 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)
    S/N ratio (A-weighted), re. 1 kHz at 1 Pa (94 dB SPL)
    Typ. 71 dB(A)
    Total harmonic distortion (THD)
    < 1% up to 123 dB SPL peak
    Dynamic range
    Typ. 97 dB
    Max. SPL, peak before clipping
    144 dB
    Output impedance
    From MicroDot: 30 - 40 . From DAD6001: 100
    Cable drive capability
    Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
    Output balance principle
    Signal balanced with DAD6001-BC XLR Adapter
    Common mode rejection ratio (CMRR)
    > 60 dB from 50 Hz to 15 kHz with DAD6001-BC XLR Adapter
    Power supply (for full performance)
    Min. 5 V to max. 50 V through DPA adapter for wireless systems
    Current consumption
    Typ. 1.5 mA (microphone). 3.5 mA with DAD6001-BC XLR Adapter
    13 g (0.46 oz) incl. Cable and MicroDot connector
    Microphone diameter
    5.4 mm (0.21 in)
    Microphone length
    17.6 mm (0.7 in)
    Cable length
    1.8 m (5.9 ft)
    Cable color
    Cable diameter
    2.2 mm (0.09 in)
    Positively increasing sound pressure produces positive-going voltage at MicroDot pin (and pin 2 on DAD6001 XLR adapter)
    Temperature range
    -40°C to 45°C (-40°F to 113°F)
    Relative humidity (RH)
    Up to 90%
    Manufacturer Part Number : 4660-OL-H-B00



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