Audio-Technica AT4021 Cardioid Condenser Microphone

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)