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AT875R
LINE + GRADIENT CONDENSER MICROPHONE
• Designed for video production and broadcast (ENG/EFP) audio
acquisition
• Extremely short length (under 7") ideal for use with compact
digital cameras
• Provides the narrow acceptance angle desirable for long-distance
sound pickup
• Excellent sound rejection from the sides and rear of mic
• Tailored response minimizes camera and handling noise
• Operates on phantom power only
The AT875R requires 11V to 52V DC phantom power for operation.
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.
To avoid phase cancellation and poor sound, all mic cables must
be wired consistently: Pin 1-to-Pin 1, etc.
The high sensitivity of the AT875R 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.
The microphone is RoHS compliant–free from all substances
specified in the EU directive on hazardous substances.
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.
AT875R SPECIFICATIONS
†
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
OPEN CIRCUIT SENSITIVITY
IMPEDANCE
MAXIMUM INPUT SOUND LEVEL
DYNAMIC RANGE (typical)
SIGNAL-TO-NOISE RATIO
1
PHANTOM POWER
REQUIREMENTS
WEIGHT (less accessories)
DIMENSIONS
OUTPUT CONNECTOR
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.
Polar Pattern
LEGEND
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 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
P51977-01
©2007 Audio-Technica U.S., Inc.
Fixed-charge back plate
permanently polarized
condenser
Line + gradient
90-20,000 Hz
–30 dB (31.6 mV) re 1V at 1 Pa*
100 ohms
127 dB SPL, 1 kHz at 1% T.H.D.
107 dB, 1 kHz at Max SPL
74 dB, 1 kHz at 1 Pa*
11-52V DC, 2 mA typical
80 g (2.8 oz)
175.0 mm (6.89") long,
21.0 mm (0.83") diameter
Integral 3-pin XLRM-type
AT8405a stand clamp for
5
/
"-27
8
threaded stands;
5
/
"-27 to
3
/
8
8
threaded adapter; windscreen;
soft protective pouch
Frequency Response
Frequency in Hertz
12" or more on axis
Printed in Japan
"-16
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