Audio Technica ATM73 Cardioid Condenser Headworn Microphone

The ATM73 cardioid condenser headworn microphone features a comfortable, unobtrusive headband design with side-of-mouth pickup. Ideal for drummers, keyboard players, or anyone requiring hands-free operation. Available in different cable terminations.

Available Configurations

• ATM73AC: 55" permanently attached miniature cable (unterminated)
• ATM73CH: 55" permanently attached miniature cable terminated with a screw-down 4-pin connector for use with Audio-Technica cH-style body-pack wireless transmitters
• ATM73CW: 55" permanently attached miniature cable terminated with a locking 4-pin connector for use with Audio-Technica cW-style body-pack wireless transmitters

Audio Technica ATM73 Features

• Comfortable, unobtrusive headband design with side-of-mouth pickup
• Belt-mounted power module operates on battery or phantom power
• Cardioid polar pattern improves isolation of desired sound source
• Ideal for drummers, keyboard players or anyone requiring hands-free operation

• ATM73 cardioid condenser headworn microphone1
• Windscreens2
• Battery1

• Transducer TypeCondenser
• Polar PatternCardioid
• Frequency Response40 Hz - 15 kHz
• Low Frequency Roll-Off80Hz, 18dB/octave (power module)
• Open Circuit Sensitivity
  • Phantom: -55dB (1.7mV) re 1V at 1 Pa
  • Battery: -56dB (1.5mV) re 1V at 1 Pa
• Impedance
  • Phantom: 200 ohms
  • Battery: 270 ohms
• Max. Input Sound Level
  • Phantom: 146dB SPL, 1kHz at 1% THD
  • Battery: 132dB SPL, 1kHz at 1% THD
• Dynamic Range (typical)
  • Phantom: 111dB, 1kHz at max. SPL
  • Battery: 97dB, 1kHz at max. SPL
• Signal-to-Noise Ratio59dB, 1kHz at 1 Pa
• Phantom Power Requirements11-52V DC, 2mA typical
• Element Power Requirements1.5-9V DC (0.5mA current consumption typical at 1.5V DC)
• Battery Type1.5V AA/UM3
• Battery Current/Life0.4mA / 1200 hours typical (alkaline)
• Switchoff, on-flat, on-roll-off (power module)
• Power Module Output Connectorintegral 3-pin XLRM-type
• Weight
  • Microphone: 1.1 oz
  • Power Module: 4.9 oz
• Dimensions
  • Microphone Diameter: 0.39"
  • Power Module (HxWxD): 3.31" x 2.48" x 0.87"
  • Headset: 6.49" nominal at widest point, 2.64" flexible boom