AKG HC644 Head-Worn Microphone


AKG HC644 Head-Worn Microphone

(Message For D.O'B. Sound Pro Price)

Building upon the success of AKG's C544 and C555, the AKG HC644 MD Head-Worn Microphone is well suited for a variety of applications such as corporate speaking, educational presentations, or aerobics. The improved design utilizes a smaller capsule with higher sensitivity, solid RF shielding, and is sweat resistant. The head-worn mic is well protected against interference caused by the inundation of wireless systems in the low to mid price range that are based on 2.4 GHz technology. The AKG HC644 MD ships with an MDA1 AKG adapter connector, a windscreen, and a carrying case.

  • Studio-Quality Sound: Flat frequency response for natural sound
  • High RF Rejection: For safe performance in RF sensitive environment
  • Moisture-Resistant Design: Reliable operation even in extensive use
  • Uniform Polar Pattern: Reduces feedback
  • Microdot Adapter: Available adapters for most wireless systems

AKG HC644 Specs

Type Back-electret condenser
Polar Pattern Cardioid
Sensitivity 20 mV/Pa
Frequency Response 20 Hz to 20 kHz
Impedance Electrical Impedance: ≤ 200 Ohms
Recommended Load Impedance: ≥ 2000 Ohms
Equivalent Noise Level 34 dB(A)
Signal-to-Noise Ratio 60 dB(A) re 1 Pa
Maximum SPL for 0.5% THD 115 dB
Power Operation Voltage: 1 to 10 VDC
Current Consumption: ≤ 500 μA RL=2.2 kOhms Vs=2.0 VDC
Output Connector 2-pin Microdot
Temperature 14 to 140°F / -10 to 60°C
Dimensions (L x W x H) 7.9 x 5.1 x 1.4" / 200.0 x 130.0 x 35.0 mm
Weight 1.1 oz / 30.0 g (including cable)

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