AT831b ch SPECIFICATIONS
Terminated with locking 4 pin Hirose connector for A-T UniPak® body-pack wireless transmitters. 1.4 m cable. Includes windscreen and clothing clip. See AT831B
ELEMENT Fixed charge back plate permanently polarized condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 40-20,000 Hz
LOW FREQUENCY ROLL OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY –44 dB (6.3 mV) / (Phantom / Battery) –45 dB (5.6 mV) re 1V at 1 Pa
IMPEDANCE (Phantom / Battery) 200 ohms / 270 ohms
MAXIMUM INPUT SOUND LEVEL 135 dB / 121 dB SPL, (Phantom / Battery) 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 106 dB / 92 dB, (Phantom / Battery) 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO1 65 dB, 1 kHz at 1 Pa*
PHANTOM POWER 11-52V DC, 2 mA typical
REQUIREMENTS
BATTERY TYPE 1.5V AA/UM3
BATTERY CURRENT / LIFE 0.4 mA / 1200 hours typical (alkaline)
SWITCH Off, on flat, on roll off
WEIGHT (less cable and accessories)
MICROPHONE 2.8 g
POWER MODULE 139 g
DIMENSIONS
MICROPHONE 25.0 mm long, 10.2 mm diameter
POWER MODULE 84.0 mm H x 63.0 mm W x 22.0 mm D
OUTPUT CONNECTOR Integral 3 pin XLRM type (power module)
CABLE 1.8 m long (permanently attached to microphone), 2.6 mm diameter, 2-conductor, shielded cable with TA3F type connector
ACCESSORIES FURNISHED AT8417 clothing clip AT8116 windscreen
