ATM75 Cardioid Condenser Headworn Microphone

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

SPECIFICATIONS
ELEMENT	Fixed-charge back plate, permanently polarized condenser
POLAR PATTERN	Cardioid
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
IMPEDANCE	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 (typical)	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 REQUIREMENTS	11-52V DC, 2 mA typical
BATTERY TYPE	1.5V AA/UM3
BATTERY CURRENT / LIFE	0.4 mA / 2000 hours typical (alkaline)
SWITCH	Off, on-flat, on-roll-off
WEIGHT (MICROPHONE)	2.1 oz (60 g)
WEIGHT (POWER MODULE)	4.9 oz (139 g)
DIMENSIONS (MICROPHONE)	0.80" (20.4 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)	4.72" (120.0 mm) nominal at widest point, 3.17" (80.5 mm) flexible boom
OUTPUT CONNECTOR (POWER MODULE)	Integral 3-pin XLRM-type
CABLE	4.6' (1.4 m) long (permanently attached to microphone), 0.11" (2.8 mm) diameter, 2-conductor shielded cable with TA3F-type connector
ACCESSORIES FURNISHED	AT8531 power module; AT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen; battery
AUDIO-TECHNICA CASE STYLE	M19