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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.
1
NOISE
19 dB SPL
DYNAMIC RANGE (typical) 126 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO
PHANT
OM POWER
1
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
1
Typical, A-weighted, using Audio Precision System One.
Specifications are subject to change without notice.
2
= 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
T
-
o
Old Lane, Leeds L
1 8AG England
1
S
www.audio-technica.com
P51753 ©2005 Audio-Technica U.S., Inc. Printed in China