DPA Microphones d:fine 66 2-Ear Omnidirectional Headset Microphone (Beige)

Product #20803 | SKU 4266-OL-F-F00-LH | DPA Microphones
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Used in various applications such as for singers, actors, and more.


The beige d:fine 66 2-Ear Omnidirectional Headset Microphone and 110mm Boom with MicroDot Connector by DPA Microphones is for capturing professional audio. It is used in various environments for applications such as singers, public speakers, actors, musicians, broadcast professionals and more. It features the DPA 4066 capsule. It is an omnidirectional microphone and has a frequency range of 20 Hz to 20 kHz. This microphone offers accurate and natural voice intelligibility and has high SPL capabilities.

The d:fine 66 headset microphone is built with a 110mm boom and is featured with a 2-ear mount. The ear mount is designed to fit any head and ear size. Just by rotating the boom and the earhook, the microphone can be moved from left to right ear. This headset is built with a 1.2m cable and terminates in a MicroDot connector. A carry box, cable clip, soft boost grid, and 3 additional windscreens are included.

Key Features

  • Users can adjust the d:fine headset for left or right ear placement
  • A service connector splits the cable from the microphone boom and allows for quick exchange of cable lengths/colors/connectors
  • Allows you to both speak and sing into the microphone with no hint of distortion
  • The ear mount is designed to fit any head and ear size
  • The directional 2-ear headset microphone offers natural voice intelligibility and very high SPL handling


Polar Pattern
Principle of Operation
Cartridge Type
Pre-polarized condenser element with vertical diaphragm
Frequency Range
20 Hz - 20 kHz
Soft-Boost Grid: 20 Hz to 20 kHz +/-2 dB, 3 dB soft boost at 8 to 20 kHz
Optional High-Boost Grid: 20 Hz to 20 kHz +/-2 dB, 10 dB boost at 12 kHz
6 mV/Pa, -44 dB re. 1 V/Pa (nominal, +/-3 dB at 1 kHz)
Equivalent Noise Level
Typical: 26 dBA re. 20 µPa
Maximum: 28 dBA
ITU-R BS.468-4:
Typical: 38 dB
Maximum: 40 dB
S/N Ratio
68 dBA, 1 kHz at 1 Pa (94 dB SPL):
Total Harmonic Distortion (THD)
<1% THD up to 123 dB SPL peak
<1% THD up to 120 dB SPL RMS sine
Dynamic Range
Typical 97 dB
Maximum Sound Pressure Level (SPL)
Peak Before Clipping: 144 dB
Output Impedance
30 to 40 Ω
Cable Drive Capability
Up to 984' (300 m)
Temperature Range
14 to 113°F (-10 to 45°C)
Relative Humidity
Up to 90%
Cable Length
4.1' (1.25 m)
Cable Diameter: 0.06" (1.6 mm)
Microphone Diameters
0.20" (5 mm)
Length: 0.39" (10 mm)
Single Ear Microphone Boom: 0.035 oz (1 g)
Earhook: 0.035 oz (1 g)
Cable: 0.28 oz (8 g)
Total: 0.35 oz (10 g)


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  • Product: DPA Microphones d:fine 66 2-Ear Omnidirectional Headset Microphone (Beige)
  • Manufacturer: DPA Microphones
  • Model: 66
  • SKU: 4266-OL-F-F00-LH
  • RM Product #: 20803

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