Terminated with locking 4 pin connector for A-T UniPak® body pack wireless transmitters. 1.4 m cable. Includes windscreen
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; 1.4 m cable terminated with locking 4 pin connector for A-T UniPak® wireless systems
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% THD
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) 60 g
WEIGHT (POWER MODULE) 139 g
DIMENSIONS (MICROPHONE) 20.4 mm diameter
DIMENSIONS (POWER MODULE) 84.0 mm H x 63.0 mm W x 22.0 mm D
DIMENSIONS (HEADSET) 120.0 mm nominal at widest point, 80.5 mm flexible boom
OUTPUT CONNECTOR (POWER MODULE) Integral 3 pin XLRM type
CABLE 1.4 m long (permanently attached to microphone), 2.8 mm diameter, 2 conductor shielded cable with Lemo type connector
ACCESSORIES FURNISHED AT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen
