Audio Technica AT2031 Specifications

AT2031

Cardioid Condenser End-Address Microphone

The ideal microphone for stringed instruments

20 series microphones

Features

• Outstanding performance and rugged construction

• High SPL handling and wide dynamic range

• Smooth, extended frequency response with a slight rise in the high-frequency region

• Switchable 150 Hz 6dB/oct hi-pass lter

• Cardioid polar pattern improves isolation of desired sound source

• Low self noise perfectly suited for digital recording equipment

• Ideal for stringed instruments such as Violin, Cello, Acoustic Guitar, Harp and Piano.

Description

The AT2031 is the ideal microphone for stringed instruments in critical studio and live applications. Its permanently polarized element offers extended frequency response with a slight rise in the high frequency range for a more detailed sound. Its low self-noise and high SPL handling capability offer a wide dynamic range, perfectly suited for the most demanding applications.

Operation and Maintenance

The AT2031 requires 48V phantom power for operation.

Output 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 150 Hz high-pass lter provides easy switching from a at frequency response to a low- end roll-off. The roll- off position reduces the pickup of low-frequency ambient noise (such as trafc, air-handling systems, etc.), room reverberation and mechanically coupled vibrations. To engage the high-pass lter, slide the switch toward the “bent” line.

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.

Element

Fixed-charge back plate, permanently polarized condenser

Polar Pattern

Frequency Response Low Frequency Roll-Off Open Circuit Sensitivity

Impedance

Maximum Input Sound Level

Dynamic Range (Typical)

Signal-To-Noise Ratio

Phantom Power Requirements

Switches

Weight

Dimensions

Output Connector

Accessories Furnished

Cardioid 20-20,000 Hz 150 Hz, 6 dB/octave

-34 dB (19.9 mV) re 1V at 1 Pa 85 ohms 141 dB SPL, 1 kHz at 1% T.H.D.; 17 dB SPL

Noise

124 dB, 1 kHz at Max SPL 77 dB, 1 kHz at 1 Pa 48V DC, 2.0 mA typical Flat, roll-off 134 g

143.0 mm long, 21.0 mm maximum body Ø Integral 3-pin XLRM-type AT8405a stand clamp; windscreen;

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.

500

200

Frequency in Hertz

12" or more on axis

= 10 microbars = 94 dB SPL

10k

20k

10 dB

polar pattern

0˚

30˚

330˚

300˚

Response in dB

240˚

210˚

SCALE IS 5 DECIBELS PER DIVISION

60˚

90˚

120˚

LEGEND

200 Hz

150˚

180˚

1 kHz 8 kHz

1 Pascal = 10 dynes/cm

Typical, A-weighte d, using Audio Precision System One.

Specications are subject to change without notice.

frequency response:

100

LEGEND

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