Audio-technica ES943C Cardioid Condenser Lavalier Microphone

The new Engineered Sound. Contractor-exclusive innovations for every acoustical challenge. And safe haven from RFI. 

The ES943C is intended to be worn on the clothing for excellent, unobtrusive sound pickup. The microphone's wide-range capability ensures clean, accurate reproduction with high intelligibility for speakers, singers and other performers. Its low-profile element provides a uniform cardioid polar pattern with 120º acceptance angle. It is equipped with an 80 Hz low-cut UniSteep® filter that reduces pickup of low-frequency ambient noise. The microphone offers unsurpassed immunity from radio frequency interference thanks to Audio-Technica’s UniGuard® innovations. 

• Designed for quality sound reinforcement, professional recording, television and other demanding sound pickup applications


• Small size and excellent response provide crisp, full-sounding voice pickup


• Available interchangeable elements permit angle of acceptance from 100º to 360º


• 55" (1.4 m) permanently attached miniature cable connects to AT8538 power module via TA3F-type connector


• Requires 11V to 52V DC phantom power
• Superior off-axis rejection for maximum gain before feedback
• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
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Integral UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
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RoHS compliant—free from all substances specified in the EU directive on hazardous substances 

ELEMENT	Fixed-charge back plate, permanently polarized condenser
POLAR PATTERN	Cardioid
FREQUENCY RESPONSE	30-20,000 Hz
LOW FREQUENCY ROLL-OFF	80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY	-40 dB (10.0 mV) re 1V at 1 Pa
IMPEDANCE	250 ohms
MAXIMUM INPUT SOUND LEVEL	138 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical)	109 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO	65 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS	11-52V DC, 2 mA typical
SWITCH	Flat, roll-off
WEIGHT (MICROPHONE)	5.5 g (0.2 oz)
WEIGHT (POWER MODULE)	81 g (2.9 oz)
DIMENSIONS (MICROPHONE)	27.5 mm (1.08") long,  8.4 mm (0.33") head diameter
DIMENSIONS (POWER MODULE)	92.9 mm (3.66") long,  18.9 mm (0.74") diameter
OUTPUT CONNECTOR (POWER MODULE)	Integral 3-pin XLRM-type
CABLE	1.4 m (55") long (permanently attached to microphone), 2.2 mm (0.09") diameter, 2-conductor shielded cable, terminated with TA3F-type connector
ACCESSORIES FURNISHED	AT8110 foam windscreen; AT8460 clothing clip; AT8538 power module; belt clip
AUDIO-TECHNICA CASE STYLE	M28