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PRO 3x
CARDIOID DYNAMIC MICROPHONE
• Designed for close-up vocal and instrumental use
• Dependable long life and consistent high quality
• Two-stage ball-type screen reduces wind noise and "popping"
during close use
• Cardioid polar pattern reduces pickup of sounds from the sides
and rear, improving isolation of desired sound source
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.
Plug Type
Ground
XLR
Pin 1
1/4" "TRS"
Sleeve
1/4"
Sleeve
To avoid phase cancellation and poor sound, all mic cables must
be wired consistently: Pin 1-to-Pin 1, etc. For a high-impedance
(Hi-Z) mic input, connect a Low-Z balanced cable to a Hi-Z match-
ing transformer (A-T CP8201 or equal) at the equipment input.
When using the PRO 3x in settings with a stage monitor speaker,
the speaker should be located 180° off axis (at the rear of
the microphone). This placement, in conjunction with the
microphone's uniform cardioid pickup pattern, will virtually
eliminate the possibility of undesired audio feedback.
The high sensitivity of the PRO 3x assures useful output and an
excellent match to most input sources. In some cases, however,
an attenuator such as the Audio-Technica AT8202 may be
required between the microphone and preamplifier to avoid
overloading sensitive input stages.
Take care to keep foreign particles from entering the windscreen.
An accumulation of iron or steel filings on the diaphragm, and/or
foreign material in the windscreen's mesh surface, can degrade
performance.
Audio "+"
Audio "
–
"
Pin 2
Pin 3
Tip
Ring
Tip
Sleeve
PRO 3x SPECIFICATIONS
†
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
SWITCH
WEIGHT (less cable and clamp)
DIMENSIONS
OUTPUT CONNECTOR
CABLE
ACCESSORY 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
Polar Pattern
0
30
330
300
60
270
90
240
120
50
100
210
150
180
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
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.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51242-EN
©2000 Audio-Technica U.S., Inc.
Dynamic
Cardioid (Unidirectional)
90-13,000 Hz
–55 dB (1.7 mV) re 1V at 1 Pa*
500 ohms
On/off
9.5 oz (270 g)
6.79" (172.5 mm) long, 2.08"
(52.8 mm) head diameter, 1.25"
to 0.88" (31.8 mm to 22.4 mm)
tapered body diameter
Integral 3-pin XLRM-type
15.0' (4.5 m) 2-conductor,
shielded, vinyl-jacketed,
broadcast-type cable with
XLRF-type connector at
microphone end, XLRM-type
connector at equipment end
5
Stand clamp for
/
"-27
8
threaded stands
Frequency Response
200
500
1k
2k
5k
10k
20k
Frequency in Hertz
12" or more on axis
Printed in Philippines
10 dB
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