Audio Technica ATM73a Cardioid Condenser Headworn Microphone

Ideal for drummers, keyboard players or anyone requiring hands-free operation, the ATM73a features a comfortable, unobtrusive headband design with side-of-mouth pickup. Its belt-mounted power module operates on battery or phantom power.

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

Also available as ATM73cW – less power module; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak™ wireless systems

Microphone Accessories

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