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Audio-Technica AT4021 Cardioid Condenser Microphone
Audio-Technica AT4021 Cardioid Condenser Microphone

Audio-Technica AT4021 Cardioid Condenser Microphone

SoundPro Item: 58323
MPN: AT4021
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The low-profile AT4021 from Audio-Technica is a condenser microphone with rugged construction that consistently delivers outstanding performance. Its cardioid pattern helps isolate the desired sound source while its high front-to-back rejection ratio minimizes pickup of unwanted background noise. Ideal for studio recording and live performance applications where high sound quality is critical, the AT4021 features a low-mass diaphragm that improves transient response, increases response bandwidth and reduces self-noise from handling or mechanical noise transfer—making it a perfect fit for digital recording equipment.

Boasting fantastic low-frequency sound reproduction, this low-profile mic includes a switchable 80 Hz high-pass filter and a 10 dB pad. It also offers flat, extended frequency response, effortless handling of high maximum sound pressure levels, and a wide dynamic range of 132 dB (1 kHz at Max SPL). This microphone also comes with a custom AT8405a stand clamp (for 5/8"-27 threaded stands), a windscreen for dampening wind noise and vocal pops, and a protective carrying case for safe transportation and storage.

Audio-Technica AT4021 Features

  • Outstanding performance and rugged construction
  • High SPL handling and wide dynamic range
  • Flat, extended frequency response
  • Switchable 80 Hz hi-pass filter and 10 dB pad
  • High front-to-back rejection ratio-cardioid polar pattern improves isolation of desired sound source
  • Low self noise perfectly suited for digital recording equipment
  • Exceptional reproduction of low frequency sounds
  • Low-mass element for superb transient response
  • AT4021 Cardioid Condenser Microphone1
  • Five Year Warranty1
  • AT8405a stand clamp for 5/8"-27 threaded stands1
  • Windscreen1
  • S1 Protective Carrying Case1
  • Transducer TypeCondenser
  • Polar PatternCardioid
  • Frequency Response20 Hz - 20 kHz
  • Output Impedance250 ohms
  • Sensitivity-34 dBV/Pa (19.9 mV)
  • Low-Frequency Roll-Off80 Hz, 18 dB/octave
  • Maximum Input Sound Level
    • 146 dB SPL, 1 kHz at 1% T.H.D.
    • 156 dB SPL, with 10 dB pad (nominal)
  • Noise14 dB SPL
  • Dynamic Range132 dB, 1 kHz at Max SPL
  • Signal-to-Noise Ratio80 dB, 1 kHz at 1 Pa
  • Phantom Power Requirements48V DC, 3.0 mA typical
  • Switches
    • Flat, roll-off
    • 10 dB pad
  • Connector3-Pin XLRM
  • Dimensions5.67 inches (144 mm) long, 0.83 inch (21 mm) maximum body diameter
  • Weight4.2 oz (119 g)

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