Audio-Technica ATM73AC Unterminated version Headworn Cardioid Condenser Microphone

Same as ATM73a, less power module; unterminated 55" (1.4 m) cable. Includes AT8125 and AT8128 windscreens

• Ideal for drummers, keyboard players or anyone requiring hands-free operation
• 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

SPECIFICATIONS

• ELEMENT: Fixed-charge back plate, permanently polarized condenser
• POLAR PATTERN: Cardioid
• FREQUENCY RESPONSE: 40-15,000 Hz
• LOW FREQUENCY ROLL-OFF: 80 Hz, 18 dB/octave
• OPEN CIRCUIT SENSITIVITY:
  • PHANTOM: -55 dB (1.7 mV) re 1V at 1 Pa
  • BATTERY: �56 dB (1.5 mV) re 1V at 1 Pa
• IMPEDANCE
  PHANTOM: 200 ohms
  • BATTERY: 270 ohms
• MAXIMUM INPUT SOUND LEVEL
  PHANTOM: 146 dB SPL, 1 kHz at 1% T.H.D.
  • BATTERY: 132 dB SPL, 1 kHz at 1% T.H.D.
• DYNAMIC RANGE (typical)
  PHANTOM: 111 dB, 1 kHz at Max SPL
  • BATTERY: 97 dB, 1 kHz at Max SPL
• SIGNAL-TO-NOISE RATIO: 59 dB, 1 kHz at 1 Pa
• PHANTOM POWER REQUIREMENTS: 11-52V DC, 2 mA typical
• BATTERY TYPE: 1.5V AA/UM3
• BATTERY CURRENT / LIFE: 0.4 mA / 1200 hours typical (alkaline)
• SWITCH: Off, on-flat, on-roll-off
• WEIGHT (MICROPHONE): 1.1 oz (31 g)
• WEIGHT (POWER MODULE): 4.9 oz (139 g)
• DIMENSIONS (MICROPHONE): 0.39" (10.0 mm) diameter
• DIMENSIONS (POWER MODULE): 3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
• DIMENSIONS (HEADSET): 6.49" (165.0 mm) nominal at widest point, 2.64" (67.0 mm) flexible boom
• OUTPUT CONNECTOR (POWER MODULE): Integral 3-pin XLRM-type
• CABLE: 4.6' (1.4 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor shielded cable with TA3F-type connector
• ACCESSORIES FURNISHED: AT8531 power module; AT8128 windscreen; AT8125 windscreen; battery
• AUDIO-TECHNICA CASE STYLE: M5