200 Hz
1 kHz
5 kHz
8 kHz
LEGEND
Polar Pattern
SCALE IS 5 DECIBELS PER DIVISION
90
60
120
30
150210
240
270
300
330
180
0
same as 1 kHz
LEGEND 12" or more on axis
Frequency in Hertz
ResponseindB
10 dB
20k10k5k2k1k50020010050
Frequency Response
· High intelligibility for lecturers, stage/TV performers and singers
· Provides excellent yet unobtrusive sound pickup
· Wide-range capability ensures clean, accurate reproduction
· Operates on phantom power only
The MT830R is designed to be worn as a lavalier or hidden in loose
clothing or in the hair. For use as a lavalier, attach the microphone
about six inches below the chin. Anticipate movements that may
cause the microphone to rub against or be covered by clothing, and
position the microphone to avoid it.
The MT830R is intended for use in professional applications where
remote power is available. It requires 9V to 52V DC phantom power,
which may be provided by a mixer or console, or by a separate,
in-line source such as the Audio-Technica AT8801 single-channel
or CP8506 four-channel phantom power supplies.
Output from the power module'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.
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.
MT830R SPECIFICATIONS
ELEMENT Fixed-charge back plate
permanently polarized
condenser
POLAR PATTERN Omnidirectional
FREQUENCY RESPONSE 30-20,000 Hz
OPEN CIRCUIT SENSITIVITY ­34 dB (19.9 mV) re 1V at 1 Pa*
IMPEDANCE 200 ohms
MAXIMUM INPUT SOUND LEVEL 131 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 107 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO1
70 dB, 1 kHz at 1 Pa*
PHANTOM POWER 9-52V DC, 2 mA typical
REQUIREMENTS
WEIGHT (less cable and accessories)
MICROPHONE 0.05 oz (1.3 g)
POWER MODULE 1.81 oz (51.4 g)
DIMENSIONS
MICROPHONE 0.62" (15.8 mm) long,
0.33" (8.5 mm) wide,
0.19" (5.0 mm) thick
POWER MODULE 3.13" (79.5 mm) long,
0.83" (21.0 mm) diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
CABLE 25' (7.6 m) long (permanently
attached to microphone),
0.10" (2.5 mm) diameter,
2-conductor, shielded cable with
TA3F output connector
ACCESSORIES FURNISHED AT8533 power module; clothing
clip; windscreens
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/cm2
= 10 microbars = 94 dB SPL
1
Typical, A-weighted, using Audio Precision System One.
Specifications are subject to change without notice.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51668-EN ©2004 Audio-Technica U.S., Inc. Printed in U.S.A.
MT830R MINIATURE OMNIDIRECTIONAL CONDENSER MICROPHONE