Audio-Technica AT2021 Datasheet

AT2021

12" or more on axis

LEGEND

Frequency in Hertz

Frequency Response

Response in dB

SCALE IS 5 DECIBELS PER DIVISION

Polar Pattern

200 Hz

LEGEND

5 kHz

1 kHz

8 kHz

SMALL-DIAPHRAGM CARDIOID CONDENSER MICROPHONE

• Ideal for acoustic guitar, overheads, piano and group vocals

• Condenser design for studio-quality vocal and instrument applications

• Excels in high-SPL applications

•

Extended response for smooth, natural sonic characteristics

• Low-mass element for superb transient response

AT2021 SPECIFICATIONS

†

ELEMENT Fixed-charge back plate

permanently polarized condenser

POLAR PATTERN Cardioid FREQUENCY RESPONSE 30-20,000 Hz OPEN CIRCUIT SENSITIVITY –39 dB (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 PHANT

OM POWER

75 dB, 1 kHz at 1 Pa* 48V DC

, 2 mA typical

REQUIREMENTS WEIGHT (less accessories) 2.9 oz (83 g) DIMENSIONS 4.00" (101.5 mm) long,

0.83" (21.0 mm) maximum body diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type ACCESSORIES FURNISHED Stand clamp; soft protective pouch

†

In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.

*1 Pascal = 10 dynes/cm

Typical, A-weighted, using Audio Precision System One.

Specifications are subject to change without notice.

= 10 microbars = 94 dB SPL

• Corrosion-resistant gold-plated XLRM-type connector

•

Rugged design and construction for reliable performance

• Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source

The AT2021 is intended for use in professional applications where remote po

wer is available. It requires 48V DC phantom power, which may be provided by a mixer or console, or by a separate, in-line source such as the Audio-Technica AT8801 singlechannel or CP8506 four-channel phantom power supplies.

Output from the microphone's XLRM-type connector is low impedance (Lo-Z) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” - positive acoustic pressure produces positive voltage at Pin 2.

To avoid phase cancellation and poor sound, all mic cables must be wired consistently:

Pin 1-to-Pin 1, etc.

Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

echnica Limited,

Audi

Old Lane, Leeds L

1 8AG England

www.audio-technica.com