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DPA Microphones d:fine™ 4166 Flex Omnidirectional Headset and Earset Microphone

90mm Boom - Beige - TA4F Mini-XLR Connector Compatible with Shure Transmitter Models: GLXD1, PGX1, SC1, SLX1, U1, ULX1, ULXD1, UR1, UR1M, UT1, QLXD1

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What's in the box:

  • DPA Microphones' d:fine™ CORE 4166
  • Clothing Clip
  • ID Rings and Cover
  • Foam Windscreen
  • TA4F Mini XLR Hardwired Connector for Shure Wireless Systems (U/SC/SLX/ULX/GLXD/ULXD/QLX, Axient Digital, TOA, Line 6
  • Limited 2-Year Warranty

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Legendary Sound - Flexible Headset

The legacy d:fine™ 4166 Omnidirectional Earset Microphone has always been, and still is, one of the most clear, consistent and robust miniature microphones you can find on the market. It’s known for working across a wide dynamic range as well as exhibiting low distortion across all SPLs. If you need to squeeze a little more performance out of your mics, choose CORE. The d:fine™ CORE 4166 Omnidirectional Earset Microphone gets a 14 dB increase in Dynamic range as the 1% THD point is higher. What can’t be seen on the specifications is that the CORE delivers an even more open and clear sound


  • Pristine audio quality
  • Lightweight and flexible
  • Minimal visual impac
  • Resistent to humidity
  • Flexible adapter system fits most professional wireless systems

With more than half a century of audio mastery, DPA designs microphones with amazing sound, exceptional consistency, and outstanding durability. Leveraging a history of developing precisely accurate measurement microphones, DPA set about making the clearest, truest pro-audio microphones in the early 1990s. Since 2015, DPA has intensified its focus and research on new product development, leading to advances in concealable miniatures and flexible headsets with minimized distortion and an expanded dynamic range.

Specifications for the DPA Microphones d:fine™ 4166 Flex Omnidirectional Headset

{ "Directional pattern": "Omnidirectional", "Principle of operation": "Pressure", "Cartridge type": "Pre-polarized condenser", "Frequency range": "20 Hz – 20 kHz", "Frequency range, ±2 dB": "20 Hz – 20 kHz with 3 dB soft boost at 8 – 15 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. 68 dB(A)", "Total harmonic distortion (THD) – Legacy": "< 1% up to 123 dB SPL peak, < 1% up to 120 dB SPL RMS sine", "Total harmonic distortion (THD) – CORE": "< 1% THD up to 137 dB SPL peak", "Dynamic range – Legacy": "Typ. 97 dB", "Dynamic range – CORE": "Typ. 111 dB", "Max. SPL, peak before clipping": "144 dB", "Output impedance": "From MicroDot: 30 – 40 ω. From DAD6001-BC: 100 Ω", "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", "Connector": "MicroDot", "Color": "Black or beige", "Weight": "Microphone boom: 0.8 g (0.03 oz). Earhook: 1.1 g (0.04 oz). Cable: 6.6 g (0.23 oz). Total: 8.5 g (0.30 oz)", "Microphone diameter": "5.4 mm (0.21 in)", "Microphone length": "Boom length: Normal: 120 mm (4.7 in), Medium: 100 mm (3.9 in)", "Cable length": "1.3 m (4.3 ft)", "Cable color": "Black or beige", "Cable diameter": "1.6 mm (0.06 in)", "Polarity": "+V at MicroDot pin for positive sound pressure (and pin 2 on DAD6001–BC XLR adapter)", "Electromagnetic compatibility (EMC)": "Fully compatible", "Temperature range": "–40°C to 45°C (–40°F to 113°F)", "Relative humidity (RH)": "Up to 90%" }

Research Materials for DPA Microphone's 4166 Headset Microphone

We've added technical materials to help with your buying decision. Even if you're technically inclined, you may want to consider talking to our sales techs to make sure this item is the right fit for your particular use. 800.562.6006

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4166-OL-F-F10MH User Manual

4166-OL-F-F10MH Brochure

4166-OL-F-F10MH Core Manual

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