AT4021 Cardioid Condenser Microphone


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Ideal for critical studio and live applications, the low-profile AT4021 offers a flat, extended frequency response, high maximum SPL and wide dynamic range. Its low self-noise is perfectly suited for the most sophisticated recording equipment. Its low-mass diaphragm improves transient response, increases response bandwidth and reduces handling and mechanical noise transfer. The microphone offers outstanding reproduction of low-frequency sounds.


• 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

Element: Fixed-charge back plate, permanently polarized condenser
Polar Pattern: Cardioid
Frequency Response: 20-20,000 Hz
Low Frequency Roll-off: 80 Hz, 18 dB/octave
Open Circuit Sensitivity: -34 dB (19.9 mV) re 1V at 1 Pa
Impedance: 250 ohms
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
Dynamic Range (Typical): 132 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio: 80 dB, 1 kHz at 1 Pa
Phantom Power Requirements: 48V DC, 3.0 mA typical
Switches: Flat, roll-off; 10 dB pad
Weight: 119 g (4.2 oz)
Dimensions: 144.0 mm (5.67") long, 21.0 mm (0.83") maximum body diameter
Output Connector: Integral 3-pin XLRM-type
Accessories Furnished: AT8405a stand clamp for 5/8"-27 threaded stands; windscreen; protective carrying case
Audio-Technica Case Style: S1
More Information
Weight 1.100000
Length 10.35
Width 4.53
Height 1.67
Color Black
Manufacturer Audio-Technica
Manufacturer Model Number AT4021
Manufacturer Part Number AT4021
UPC 4961310103002
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