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Audio Technica AT2021 Cardioid Condenser Microphone

FOH Staff • New Gear • July 19, 2010

Audio-Technica's AT2021 Cardioid Condenser Microphone promises an extended frequency response, high maximum SPL and wide dynamic range for acoustic guitar, overheads, piano and group vocals.
The unit's cardioid polar pattern is designed to reject pickup of sounds from the sides and rear, improving isolation of the desired sound source. The units are also designed for reliability, with corrosion-resistant contacts from the microphone's gold-plated XLRM-type connector.


The AT2021 is also available packaged with the AT2020 in the AT2041SP Studio Pack.


The AT2021 specifications include:


Element: Fixed-charge back plate, permanently polarized condenser

Polar Pattern: Cardioid

Frequency Response: 30-20,000 Hz

Open Circuit Sensitivity: -39 (11.2 mV) re 1V at 1 Pa

Impedance: 250 ohms

Maximum Input Sound Level: 145 dB SPL, 1 kHz at 1% T.H.D.

Noise: 19 dB SPL

Dynamic Range (Typical): 126 dB, 1 kHz at Max SPL

Signal-to-Noise Ratio: 75 dB, 1 kHz at 1 Pa

Phantom Power Requirements: 48V DC, 2 mA typical

Weight: 83 g (2.9 oz)

Dimensions: 101.5 mm (4.00") long, 21.0 mm (0.83") maximum body diameter

Output Connector: Integral 3-pin XLRM-type

Accessories Furnished: Stand clamp; soft protective pouch


MSRP is $139.


For more information, please visit


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