Mini headworn front-of-mouth cardioid electret

$275 + shipping (includes gst)

With a pivot-mounted flexible mic boom that descends from either the left or right side, the ATM75 delivers professional-quality vocal pickup with hands-free operation. The belt-mounted power module operates on either battery or phantom power.


  • Professional-quality vocal pickup with hands-free operation
  • Low-visibility headband provides stable, comfortable fit
  • Pivot-mounted flexible mic boom descends from left or right side
  • Belt-mounted power module operates on battery or phantom power
  • Cardioid polar pattern improves isolation of desired sound source
  • Also available as: ATM75cW - less power module; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systems

Fixed-charge back plate, permanently polarized condenser

Polar Pattern


Frequency Response

100-13,000 Hz

Low Frequency Roll Off

80 Hz, 18 dB/octave

Open Circuit Sensitivity

PHANTOM: -51 dB (2.8 mV) re 1V at 1 Pa BATTERY: -53 dB (2.2 mV) re 1V at 1 Pa


PHANTOM: 200 ohms BATTERY: 270 ohms

Maximum Input Sound Level

PHANTOM: 132 dB SPL, 1 kHz at 1% T.H.D. BATTERY: 121 dB SPL, 1 kHz at 1% T.H.D.

Dynamic Range

PHANTOM: 96 dB, 1 kHz at Max SPL BATTERY: 85 dB, 1 kHz at Max SPL

Signal to Noise Ratio

58 dB, 1 kHz at 1 Pa

Phantom Power Requiremens

11-52V DC, 2 mA typical

Battery Type

1.5V AA/UM3

Battery Current Life

0.4 mA / 2000 hours typical (alkaline)


Off, on-flat, on-roll-off


4.6′ (1.4 m) long (permanently attached to microphone), 0.11″ (2.8 mm) diameter, 2-conductor shielded cable with TA3F-type connector


AT8531 power module; AT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen; battery

Polar Pattern
Frequency Response
ATM75 Submit (PDF) Download
ATM75 Spec Sheet (PDF) Download



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