Microtech Gefell HSM180
Headworn Condenser Microphone

HSM180

Microtech Gefell's HSM180 Headset Microphone is for radio and TV commentators, interpreters and others. The microphone achieves an improved signal-to-noise ratio in respect of environmental noise due to its close proximity to the mouth. A pressure receiver is used as a converter allowing relatively non-critical placement of the microphone through, for example inaccurate adjustment, assuring an outstanding purity of sound. The microphone can be positioned in three axes. lt is adjusted by means of an easy-to-handle knurled thumbscrew with collar.

The upper frequency characteristic on the main response axis of the microphone provides optimal compensation for high frequency loss when side addressed. The microphone assures a neutral sound quality and has a negligible self-noise level for a headset microphone. The W18 windscreen removes the majority of invetiable pops in close applications.

The headset mic is intended for use with Microtech Gefell's ULTRASONE HFI-650 studio headphones (with S-Logic™ Sound System technology), as seen in the picture.  These headphones are a closed system which shields the announcer from environmental noise but give the impression of an open system.

Specifications:

• Polar pattern: Omni
• Acoustic operating principle: Pressure transducer
• Frequency range: 40Hz - 18kHz
• Sensitivity at 1 kHz: 7 mV / Pa
• Output impedance: 100 ohm
• Noise level:
  CCIR 468-4: 30 dB
  IEC 651: 20 dB - A
• Signal-to-noise ratio (re 1 Pa at 1 kHz):
  CCIR-weighted: 64 dB
  A-weighted: 74 dB
• Max. SPL for THD < 0.5%: 147 dB
• Dynamic range of electronics: 127 dB
• Current consumption (P 48, DIN 45596, IEC 268-15): 3.3 mA
• Output connector:
  Microphone: 3-pin XLR connector
  Headphones: Vario jack 3.5/6.3 mm
  Goldplated contacts
• Length connection cable: 1.5 m
• Length spiral cable to jack: ~ 0.5 m
• Weight (including HFI-650 headphones): 510 g
• Diameter microphone: 21 mm

Our Part #  HSM180