SCALE IS 5 DECIBELS PER DIVISION
1 kHz
8 kHz
5 kHz
200 Hz
LEDGEND
240
°
210
°
180
°
150
°
120
°
Polar Pattern
270
°
300
°
330
°
90
°
60
°
0
°
30
°
• Outstanding performance and versatility
• High SPL handling and wide dynamic range
• Flat, extended frequency response
• Switchable 80 Hz hi-pass filter and 10 dB pad
• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source
The AT3031 is intended for use in professional applications where
remote power is available. It requires 11V to 52V 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 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.
An integral 80 Hz hi-pass filter provides easy switching from a flat
frequency response to a low-end roll-off. The roll-off position
reduces the microphone’s sensitivity to popping in close vocal use.
It also reduces the pickup of low-frequency ambient noise (such
as traffic, air-handling systems, etc.), room reverberation and
mechanically-coupled vibrations.
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.
One-Year Limited Warranty
Audio-Technica brand products purchased in the U.S.A. are warranted for one year from date
of purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free of defects in materials and
workmanship. In event of such defect, product will be repaired promptly without charge or, at
our option, replaced with a new product of equal or superior value if delivered to A.T.U.S. or
an Authorized Service Center, prepaid, together with the sales slip or other proof of purchase
date. Prior approval from A.T.U.S. is required for return. This warranty excludes defects
due to normal wear, abuse, shipping damage, or failure to use product in accordance with
instructions. This warranty is void in the event of unauthorized repair or modification, or
removal or defacing of the product labeling.
For return approval and shipping information, contact the Service Department,
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224.
Except to the extent precluded by applicable state law, A.T.U.S. will have no liability for
any consequential, incidental, or special damages; any warranty of merchantability or
fitness for particular purpose expires when this warranty expires.
This warranty gives you specific legal rights, and you may have other rights which vary from
state to state.
Outside the U.S.A., please contact your local dealer for warranty details.
AT3031 SPECIFICATIONS
†
ELEMENT Fixed-charge back plate
permanently polarized
condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 30-20,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY –34 dB (19.9 mV) re 1V at 1 Pa*
IMPEDANCE 250 ohms
MAXIMUM INPUT SOUND LEVEL 148 dB SPL, 1 kHz at 1% T.H.D.;
158 dB SPL, with 10 dB
pad (nominal)
NOISE
1
16 dB SPL
DYNAMIC RANGE (typical) 132 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO
1
78 dB, 1 kHz at 1 Pa*
PHANTOM POWER
11-52V DC, 3 mA typical
REQUIREMENTS
SWITCHES Flat, roll-off;
10 dB pad (nominal)
WEIGHT (less accessories) 4.0 oz (112 g)
DIMENSIONS 5.67" (144.0 mm) long, 0.83"
(21.0 mm) maximum body
diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
ACCESSORIES FURNISHED
AT8405 stand clamp for
5
/
8
"-27
threaded stands; AT8159 foam
windscreen; 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
2
= 10 microbars = 94 dB SPL
1
Typical, A-weighted, using Audio Precision System One.
Audio-Technica U.S., Inc.,
1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited,
Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51323-EN ©2001 Audio-Technica U.S., Inc. Printed in Japan
AT3031
CARDIOID CONDENSER MICROPHONE
LEGEND
12" or more on axis
Roll-off
10 dB
Response in dB
B
Frequency Response
10k
5k
1k
500
Frequency in Hertz
2k
100
50 200 20k
