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