Audio-Technica ATM -73a

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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

Call GAK now for product info, advice and the Best Prices - 01273 665400

  • 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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For further information on our finance options, including representative examples, please click here. Finance is subject to status, terms and conditions apply.

GAK.CO.UK LTD is registered in England and Wales 04578270. Registered office: 30 - 34 North Street Hailsham East Sussex BN27 1DW GAK.CO.UK LTD acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. GAK.CO.UK LTD is an appointed representative of The Guitar Amp and Keyboard Centre Limited which is authorised and regulated by the Financial Conduct Authority. GAK.CO.UK LTD FCA registration number is 731400. The Guitar Amp and Keyboard Centre Limited FCA registration number is 684977. Credit provided subject to age and status

V12 Retail Finance Limited. Registered in England and Wales 4585692. Registered office: One Arleston Way, Solihull, B90 4LH. Authorised and regulated by the Financial Conduct Authority. Our FCA reference number is 679653.

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