 |  | Audio-Technica ATM -73a Microphones Audio-Technica Microphones
Audio-Technica Audio-Technica
Ideal for anyone requiring hands-free operation
Comfortable, unobtrusive headband design with side-of-mouth pickup
Belt-mounted power module operates on battery or phantom power
Cardioid polar pattern improves isolation of desired sound source
Main Specifications
Element: Fixed charge back plate, permanently polarised condenser
Polar Pattern: Cardioid
Frequency Response: 40 - 15,000Hz
Low Frequency Roll-Off: 80Hz, 18dB/octave
Open Circuit Sensitivity: -55dB (1.7mV) re: 1V @ 1Pa (Phantom); -56dB (1.5mV) re: 1V @ 1Pa (Battery)
Impedance: 200 Ohms (Phantom); 270 Ohms (Battery)
Maximum Input SPL: 146dB SPL, 1kHz @ 1% THD (Phantom); 132dB SPL, 1kHz @ 1% THD (Battery)
Dynamic Range (Typical): 111db, 1kHz @ 1% THD (Phantom); 97db, 1kHz @ 1% THD (Battery)
Signal to Noise Ratio: 59dB (at 1kHz/1Pa)
Power Requirements: 11-52VDC Phantom, 2mA typical
Battery Type: 1.5V AA / UM3
Battery Current/Life: 0.4mA / 1200 hours typical
Switch: Off, on-flat, on-roll-off
Weight (Microphone): 31g (1.1oz)
Weight (Power Module): 139g (4.9oz)
Dimensions (Microphone): 10.0mm (0.39") diameter
Dimensions (Power Module): 84mm (3.31") long, 63mm (2.48") width, 22mm (0.87") depth
Dimensions (Headset): 165.0mm (6.49") nominal at widest point; 67.0mm (2.64") flexible boom
Output Connector: Integral 3-pin XLRM-type
Cable: Integral 1.4m (4.6'), permanently attached to microphone
Supplied Accessories: AT8531 Power Module; AT8128 Windscreen; AT8125 Windscreen; battery
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Pro-Audio- Acoustic Treatment
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Accessories for Large Diaphragm Condensers, Condensers, Handheld/Vocal Microphones, Headset Microphones, Instrument/Other Microphones, Large Diaphragm Condensers, Miniture/Clip-on Microphones, Ribbon Mics, ShockMounts/Accessories, Small Diaphragm Condensers, USB Microphones, Valve Microphones, Video Microphones
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