ATM73a
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
SCALE IS 5 DECIBELS PER DIVISION
240˚
180˚
210˚
270˚
300˚
330˚
0˚
150˚
120˚
90˚
30˚
60˚
12" or more on axis
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
Roll-off
frequency response: 40–15,000 Hz
polar pattern
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
©2010 Audio-Technica U.S., Inc. audio-technica.com
0001-0164-01
Specifications
Fixed-charge back plate, permanently
polarized condenser
Cardioid
40-15,000 Hz
80 Hz, 18 dB/octave
Phantom:–55 dB (1.7 mV) re 1V at 1 Pa
Battery: –56 dB (1.5 mV) re 1V at 1 Pa
Phantom: 200 ohms
Battery: 270 ohms
Phantom: 146 dB SPL, 1 kHz at 1% T.H.D.
Battery: 132 dB SPL, 1 kHz at 1% T.H.D.
Phantom: 111 dB, 1 kHz at Max SPL
Battery: 97 dB, 1 kHz at Max SPL
59 dB, 1 kHz at 1 Pa
11-52V DC, 2 mA typical
1.5V AA/UM3
0.4 mA / 1200 hours typical (alkaline)
Off, on-flat, on-roll-off
Microphone: 31 g (1.1 oz)
Power module: 139 g (4.9 oz)
Microphone: 10.0 mm (0.39") diameter
Power module: 84.0 mm (3.31") H x
63.0 mm (2.48") W x 22.0 mm (0.87") D
Headset: 165.0 mm (6.49") nominal at
widest point, 67.0 mm (2.64") flexible
boom
Power module: Integral 3-pin XLRM-type
1.4 m (4.6') long (permanently attached
to microphone), 2.6 mm (0.10") diameter,
2-conductor shielded cable with TA3F-
type connector
M5
AT8531 power module; AT8128
windscreen; AT8125 windscreen; battery
Element
Polar pattern
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio
1
Phantom power requirements
Battery type
Battery current / life
Switch
Weight
Dimensions
Output connector
Cable
Audio-Technica case style
Accessories furnished
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.
Specifications are subject to change without notice.
1.4 m (55") permanently attached miniature cable terminated with a
locking 4-pin connector for use with Audio-Technica UniPak
®
body-pack
transmitters. No power module or battery shall be required or included
with the wireless model. The wireless model dimensions, polar pattern
and included windscreens shall be identical to those of the wired model.
The wireless model shall also be available unterminated.
The Audio-Technica ATM73a [ATM73cW-wireless]; [ATM73ac-unterminated]
is specified.
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