One -Year Limited Warranty
Audio -Technica microphones and accessories 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.
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.
Form No. 0309-9507-00-B/W P50887
© 1996 Audio -Technica U.S., Inc.
Printed in U.S.A.
Audio -Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
Element
Fixed-charge back plate
permanently polarized condenser
Polar Pattern
Cardioid (Unidirectional)
Frequency Response
40-20,000 Hz
Low-frequency Roll-off
150 Hz, 6 dB/octave
Open Circuit Sensitivity
– 33 dB (22.4 mV) re 1V at 1 Pa*
Impedance
200 ohms (1000 ohms without power module)
Maximum Input Sound Level
130 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range
(Typical)
103 dB, 1 kHz at Max SPL
Signal-to-noise Ratio
1
67 dB, 1 kHz at 1 Pa*
Phantom Power Requirements
9-52V DC, 2 mA typical
Weight
Microphone
0.4 oz (10 grams)
Power Module
3.4 oz (96 grams)
Dimensions
Microphone
1.38" (35.0 mm) long, 0.48" (12.2 mm) head diameter
Power Module
2.80" (71.0 mm) W x 4.55" (115.5 mm) H x 1.42" (36.0 mm) D
Power Module
Connectors
Screw terminals
Cable
50' (15.2 m) long (permanently attached to microphone),
0.13" (3.2 mm) diameter, 2-conductor, shielded cable
with pigtail output
Accessories Furnished
(AT933PM/C)
AT8102 two-stage foam windscreen;
AT8451 steel hanger
(AT933PMW/C)
AT8102WH two-stage foam windscreen;
AT8451WH steel hanger
(Both)
AT8534(A) power module;
element adapter (for C/H/O/SC elements)
Optional Interchangeable
AT853H-ELE hypercardioid (100
°
)
Elements
AT853ML-ELE MicroLine
(90
°
)
AT853O-ELE omnidirectional (360
°
)
AT853SC-ELE subcardioid (170
°
)
† 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.
AT933PM/C Specifications
†
Polar Pattern
Architects and Engineers Specifications
The microphone shall be a fixed-charge
condenser with a cardioid polar pattern and a
frequency response of 40 Hz to 20,000 Hz. It shall
be capable of accepting optional interchangeable
elements for additional polar patterns. It shall
operate from an external 9V to 52V DC phantom
power source. Nominal open-circuit output voltage
with the included wall/ceiling plate power module
shall be 22.4 mV at 1 kHz, 1 Pascal. Output shall
be low impedance balanced (200 ohms).
The microphone shall have a permanently-
attached 50' (15.2 m) miniature cable with a
pigtail output. The pigtail output shall connect
to screw terminals on the power module. Output
connections on the power module shall be screw
terminals.
The microphone shall be mountable in an
included steel hanger that allows permanent
overhead installation for pickup of dialogue,
orchestras and choirs. The microphone shall
be 1.38" (35.0 mm) long with a head diameter of
0.48" (12.2 mm). The microphone weight shall be
0.4 oz (10 grams) without cable. The microphone
case, cable and steel hanger shall be black [white].
The Audio-Technica AT933PM/C
[AT933PMW/C] is specified.
200 Hz
1 kHz
5 kHz
8 kHz
LEGEND
SCALE IS 5 DECIBELS PER DIVISION
90
60
120
30
150
210
240
270
300
330
180
0
1.38"
35.0 mm
0.13"
3.2 mm
50
15.2 m
12.2 mm
0.48"
SHIELD
RED / RED
YEL / YEL
Dimensions
YL
RD
SH
3
2
1
JW
Jumper wire
Terminal screws
IN
OUT
YEL / YEL
RED / RED
SHIELD
INPUT
AUDIO –
AUDIO +
SHIELD
OUTPUT
Power Module
AT933PM/C
