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PRO 41
CARDIOID DYNAMIC MICROPHONE
• Provides natural, full-range vocal reproduction
• Silent on-off operation thanks to MagnaLock
• Hi-ENERGY
®
neodymium magnet for improved output and
transient response
• Two-stage ball-type screen reduces wind noise and "popping"
during close use
• Corrosion-resistant contacts from gold-plated XLRM-type
connectors
• Superior internal shock mounting reduces handling noise
• Rugged design and construction for reliable performance
• 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
/
" "TRS"
Sleeve
4
1
/
"
Sleeve
4
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 Lo-Z balanced cable to a Hi-Z matching transformer
(A-T CP8201 or equal) at the equipment input.
When using the PRO 41 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 PRO 41 utilizes a MagnaLock on/off switch. This specially designed
switch operates silently and may be locked in the "on" position to
prevent accidental turn-off during use. To lock, slide the switch up into
the "on" position (Fig. 1a). Using a small flat-head screwdriver, rotate
the small screw in the center of the switch 90 degrees (
counter-clockwise (Fig. 1b). Never force the screw. When the screw slot
position is horizontal ("across" the microphone body), the switch is
locked. To unlock the switch, turn the screw 90 degrees clockwise until
the screw slot position is again vertical (in line with the microphone
body). Never try to turn the switch more than 90 degrees or
The switch may only be locked in the "on" position. Do not try to turn the
screw when the switch is in the "off" position.
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.
™
switch design
Audio "+"
Audio "–"
Pin 2
Pin 3
Tip
Ring
Tip
Sleeve
1
/
turn)
4
1
/
rotation.
4
PRO 41 SPECIFICATIONS
†
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
SWITCH
WEIGHT (less cable and accessories)
DIMENSIONS
OUTPUT CONNECTOR
CABLE
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
Specifications are subject to change without notice.
Polar Pattern
0
330
30
300
60
270
90
240
120
50
100
210
150
180
LEGEND
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Unlocked
Locked
Position
Position
O N
O N
Fig. 1a
Fig. 1b
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P3893-00190
P51681-EN
©2004 Audio-Technica U.S., Inc.
Dynamic
Cardioid
90-16,000 Hz
–55 dB (1.7 mV) re 1V at 1 Pa*
300 ohms
MagnaLock
™
on/off
10.7 oz (304 g)
7.28" (185.0 mm) long,
2.09" (53.1 mm) head diameter
Integral 3-pin XLRM-type
15.0' (4.5 m) cable with XLRF-type
connector at microphone end,
XLRM-type connector at equipment
end
AT8470 Quiet-Flex
™
stand clamp for
5
/
"-27 threaded stands;
8
5
/
"-27 to
3
/
"-16 threaded adapter;
8
8
soft protective pouch
Frequency Response
200
500
1k
2k
5k
10k
20k
Frequency in Hertz
12" or more on axis
Do not try
Do not turn
to lock switch
screw clockwise
in the "off "
to lock
position
OFF
O N
Fig.1c
Fig. 1d
Printed in Taiwan
10 dB
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