Audio-Technica AT4021 Small-Diaphragm Cardioid Condenser Microphone

Priced: $349.00
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Audio-Technica AT4021 Small-Diaphragm Cardioid Condenser Microphone -

The Audio-Technica AT4021 Cardioid Condenser Microphone features a low-profile design and small-diaphragm condenser element. The sensitivity, frequency response and SPL capabilities make it a suitable choice for speaker cabinets, vocals, percussion instruments, drums and "spot" placement on guitars, stringed instruments, etc.
The cardioid polar pattern effectively minimizes noise and off-axis feedback. An 80Hz high-pass filter switch reduces low frequencies and all associated noise. In addition a -10dB Pad switch provides added headroom and minimizes distortion when capturing transient (peaking) audio signals.


  • Outstanding performance and rugged construction


  • Switchable 80 Hz hi-pass filter and 10 dB pad


  • Exceptional reproduction of low frequency sounds
  • Low self noise perfectly suited for digital recording equipment
  • High SPL handling and wide dynamic range
  • Low-mass element for superb transient response
  • High front-to-back rejection ratio-cardioid polar pattern improves isolation of desired sound source
  • Flat, extended frequency response
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Dimensions (LxDiameter):5.67x0.83" / 144x21.08mm
Dynamic Range (Typical):132 dB, 1 kHz at Max SPL
Frequency Response:20-20,000 Hz
Low Frequency Roll-Off:80 Hz, 12 dB/octave
Maximum Input Sound Level:146 dB SPL, 1 kHz at 1% T.H.D. 156 dB SPL, with 10 dB pad (nominal)
Noise:14 dB SPL
Open Circuit Sensitivity:-34 dB (19.9 mV) re 1V at 1 Pa
Output Connectors:3-pin XLR
Output Impedance:250 ohms
Polar Pattern:Cardioid
Power Requirements:48V DC, 3.0 mA typical
Signal-to-Noise Ratio:80 dB, 1 kHz at 1 Pa
Switches:Flat, roll-off;10 dB pad
Transducer:Fixed-charge back plate, permanently polarized condenser
Weight:4.2oz / 119.06g

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