User Manual

• Three switchable polar patterns: omni, cardioid, figure-of-eight
• Dual-diaphragm capsule design maintains precise polar pattern
definition across the full frequency range of the microphone
• Switchable 80 Hz high-pass filter and 10 dB pad
• State-of-the-art surface-mount electronics ensure compliance with
A-T's stringent consistency and reliability standards
• Dual large diaphragms are gold-vaporized and aged to achieve
optimum characteristics over years of use
The AT2050 is intended for use in professional applications where
remote power is available. It requires 11V 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 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.
An integral 80 Hz hi-pass filter provides easy switching from a flat
frequency response to a low-end roll-off. The high pass position
reduces the microphone's sensitivity to popping in close vocal use.
It also reduces the pickup of low-frequency ambient noise (such
as traffic, air-handling systems, etc.), room reverberation and
mechanically-coupled vibrations.
In use, secure the cable to the mic stand or boom, leaving a slack
loop at the mic. This will ensure the most effective shock isolation
and reduce the possibility of accidentally pulling the microphone out
of its mount.
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.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P52059 ©2008 Audio-Technica U.S., Inc. Printed in Taiwan
AT2050
AT2050 SPECIFICATIONS
†
ELEMENT Externally polarized (DC Bias)
condenser
POLAR PATTERNS Cardioid, Omnidirectional,
Figure-of-Eight
FREQUENCY RESPONSE 20-20,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY –42 dB (7.9 mV) re 1V at 1 Pa*
IMPEDANCE 120 ohms
MAXIMUM INPUT SOUND LEVEL 149 dB SPL, 1 kHz at 1% T.H.D.;
159 dB SPL with 10 dB pad
(nominal)
NOISE
1
17 dB SPL
DYNAMIC RANGE (typical) 132 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO
1
77 dB, 1 kHz at 1 Pa*
PHANTOM POWER REQUIREMENTS 11-52V DC, 4.7 mA typical
SWITCHES Pattern selection; Flat, roll-off;
10 dB pad (nominal)
WEIGHT 412 g (14.5 oz)
DIMENSIONS 170.0 mm (6.69") long,
52.0 mm (2.05") maximum body
diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
ACCESSORIES FURNISHED AT8458 Shock mount for
5
/
8
"-27
threaded stands;
5
/
8
"-27 to
3
/
8
"-16
threaded adapter; soft protective
pouch
†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.
MULTI-PATTERN CONDENSER MICROPHONE
Polar Pattern (Cardioid)
Frequency Response (Cardioid)
Response in dB
SCALE IS 5 DECIBELS PER DIVISION
Polar Pattern (Omni)
200 Hz
LEGEND
5 kHz
1 kHz
8 kHz
Same as 1 kHz
12" or more on axis
LEGEND
Roll-off
Frequency in Hertz
Frequency Response (Omni)
Response in dB
SCALE IS 5 DECIBELS PER DIVISION
Polar Pattern (Fig. Eight)
200 Hz
LEGEND
5 kHz
1 kHz
8 kHz
Same as 1 kHz
Same as 1 kHz
Same as 1 kHz
12" or more on axis
LEGEND
Roll-off
Frequency in Hertz
Frequency Response (Fig. Eight)
Response in dB