User Guide

• The price/performance standard in side-address studio condenser
microphone technology
• Ideal for project/home-studio applications
• High SPL handling and wide dynamic range provide unmatched
versatility
• Custom-engineered 16 mm low-mass diaphragm provides
extended frequency response and superior transient response
• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source
• Pivoting, threaded stand mount attaches securely for easy and
precise placement of the microphone
The AT2020 is intended for use in applications where remote power
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 single-channel and 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.
270
" or more on axis
12
100
50
200
LEGEND
k
10
k
5
k
1
500
k
2
20
k
Frequency in Hertz
Frequency Response
dB
10
SCALE IS 5 DECIBELS PER DIVISION
Polar Pattern
Hz
200
LEGEND
kHz
5
kHz
1
kHz
8
240
180
210
300
330
0
150
120
90
30
60
AT2020 SPECIFICATIONS
†
ELEMENT
Fixed-charge back plate
permanently polarized condenser
POLAR PATTERN
Cardioid
FREQUENCY RESPONSE
20-20,000
Hz
OPEN CIRCUIT SENSITIVITY
–37 dB (14.1 mV) re 1V at 1 Pa*
IMPEDANCE
ohms
100
MAXIMUM INPUT SOUND LEVEL
dB SPL, 1 kHz at 1% T.H.D.
144
NOISE
1
20
dB SPL
DYNAMIC RANGE
dB, 1 kHz at Max SPL
(
typical)
124
SIGNAL-TO-NOISE RATIO
1
dB, 1 kHz at 1 Pa*
74
PHANTOM POWER
48
V DC, 2 mA typical
REQUIREMENTS
WEIGHT
12.1
)
(
less accessories)
oz (345 g
DIMENSIONS
6.38
" (162.0 mm) long,
" (52.0 mm) maximum body
2.05
diameter
OUTPUT CONNECTOR
Integral 3-pin XLRM-type
ACCESSORIES FURNISHED
Stand mount for
5
/
8
"-27 threaded
stands;
5
/
8
"-27 to
3
/
8
"-16 threaded
adapter; 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.
Pascal = 10 dynes/cm
*1
2
10 microbars = 94 dB SPL
=
1
Typical, A-weighted, using Audio Precision System One.
Specifications are subject to change without notice.
AT2020
CARDIOID CONDENSER MICROPHONE