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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


  •  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 fi 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



Fixed-charge back plate permanently polarized condenser

Polar Pattern


Frequency Response

20-20,000 Hz

Low Frequency Roll-Off

150 Hz, 6 dB/octave

Open Circuit Sensitivity

– 34 dB (19.9 mV) re 1V at 1 Pa*


85 ohms

Maximum Input Sound Level

141 dB SPL, 1 kHz at 1% T.H.D.


17 dB SPL

Dynamic Range (typical)

124 dB, 1 kHz at max SPL

Signal-to-Noise Ratio

77 dB, 1 khz at 1 Pa*

Phantom Power Requirements

48V DC, 2mA typical


Flat, roll-off


134 g


143.0 mm long, 21.0 mm maximum body Ø

Output Connector

Integral 3-pin XLRM-type

Accessories Furnished

AT8405a stand clamp; windscreen; soft protective pouch
*1 pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

Audio Technica AT2031

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