Audio Technica PRO 24 Specifications

PRO 24
STEREO CONDENSER MICROPHONE
• Designed for a wide range of stereo applications, including
field recording, video production and studio use
• Offers the convenience of high-quality stereo pickup in a single
microphone
• Compact, lightweight design is perfect for camera-mount use
• Battery-free operation when used with recording devices that
provide plug-in power at the mic input
• Pair of cardioid condenser elements in X/Y configuration provides
the spatial impact and realism of a live sound field
• Professional condenser circuitry ensures excellent sound quality
• On/off switch for convenient operation
The PRO 24 is designed for either battery operation or for battery-
free operation when used with recording devices that provide plug-
in power (2-10 volts DC) at the mic input. If used without plug-in
power, install the battery before attempting use. If used with
a recording device equipped for plug-in power, simply plug the
microphone cable's stereo mini-plug directly into the recording
device's microphone input. No battery is needed when the PRO 24
is used with plug-in power.
Battery installation: Unscrew the lower section of the microphone
and slide it down to reveal the battery compartment. Insert the
battery being certain to observe polarity as indicated (+ end toward
the front of the microphone). Close and secure the cover. Remove
the battery during long-term storage.
Output for each stereo channel is low impedance (Lo-Z)
unbalanced. The included 6' (1.8 m) shielded cable features a
3.5 mm stereo mini-plug at the output end.
Locating the PRO 24 nearer the sound source enhances the width
of the stereo image, while decreasing room ambience. Conversely,
as the mic position moves away from the sound source, a narrower
left/right stereo image results and more of the "room sound" is
noted.
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.
PRO 24 SPECIFICATIONS †
ELEMENTS
POLAR PATTERN
FREQUENCY RESPONSE
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
MAXIMUM INPUT SOUND LEVEL
DYNAMIC RANGE (typical)
SIGNAL-TO-NOISE RATIO 1
POWER REQUIREMENTS
BATTERY TYPE
BATTERY CURRENT / LIFE
SWITCH
WEIGHT
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
1 Typical, A-weighted, using Audio Percision System One.
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
LEFT RIGHT
1 kHz 1 kHz
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51675-EN ©2004 Audio-Technica U.S., Inc.
Fixed-charge back plate
permanently polarized condenser
X/Y Stereo
100-17,000 Hz
–50 dB (3.1 mV) re 1V at 1 Pa*
600 ohms
119 dB SPL, 1 kHz at 1%T.H.D.
82 dB, 1 kHz at Max SPL
57 dB, 1 kHz at 1 Pa*
2-10V DC plug-in power
1.5V LR44
0.6 mA / 200 hours typical
On/off
3.9 oz (111 g)
4.59" (116.5 mm) long,
0.83" (21.0 mm) maximum body
diameter
3.5 mm stereo mini plug on cable
Permanently attached 6' (1.8 m)
cable with 3.5 mm stereo plug at
output end
AT8405a stand clamp for 5 / "-27
8
threaded stands; 5 / "-27 to 3 / "-16
8 8
threaded adapter; LR44 battery;
windscreen; soft protective pouch
Frequency Response
200 500 1k 2k 5k 10k 20k
Frequency in Hertz
12" or more on axis
Printed in Taiwan
10 dB