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Audio-Technica AT2031
Photo: Audio-Technica, from its spec sheet, p. 1.

Audio-Technica

Audio-Technica AT2031

Small-diaphragm condenser (fixed-charge back plate), cardioid, end-address, for stringed instruments, with a 150 Hz high-pass switch

Type
Condenser (electret)
Pattern
Cardioid
Sensitivity
−34 dBV/Pa
Self-noise
17 dB(A)
Max SPL
141 dB SPL
Impedance
85 Ω
Rated range
20 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet (Recording Hacks copy), p. 1. Printed under the graph: "12\" or more on axis" (30 cm or more). Room and smoothing not stated.

Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.

Polar pattern

Polar pattern: from the spec sheet (Recording Hacks copy), p. 1. "polar pattern", full circle, 0° up; "SCALE IS 5 DECIBELS PER DIVISION". Measuring conditions not stated.

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All specs

From the spec sheet
Sensitivity−34 dBV/Pa (19.9 mV/Pa), open circuit. "-34 dB (19.9 mV) re 1V at 1 Pa".p. 1
Self-noise17 dB(A), typical, A-weighted (Audio Precision System One). "17 dB SPL"; the weighting is in the US sheet's footnote, "Typical, A-weighted, using Audio Precision System One".
Max SPL141 dB SPL, 1 kHz, 1% THD. "141 dB SPL, 1 kHz at 1% T.H.D.;" (both sheets end the line with a semicolon, as if a padded figure had been left out; the mic has no pad).
Signal-to-noise ratio77 dB, 1 kHz at 1 Pa
Dynamic range124 dB, 1 kHz at max SPL, typical
Output impedance85 ohm
Rated frequency range20 Hz to 20 kHz. Tolerance not stated.
Poweringphantom 48 V DC. "48V DC, 2.0 mA typical".
Current draw2 mA, typical
Low cutflat, roll-off; 150 Hz; 6 dB/octave; high-pass. "Low Frequency Roll-off: 150 Hz, 6 dB/octave"; "Switches: Flat, roll-off".
ConnectorXLR-3 male (integral). "Integral 3-pin XLRM-type".
Weight134 g
Dimensions21 × 143 mm. Diameter × length: "143.0 mm long, 21.0 mm maximum body diameter".
Supplied accessoriesAT8405a stand clamp; windscreen; soft protective pouch
Applications (Audio-Technica)Stringed instruments: violin, cello, acoustic guitar, harp and piano
VoicingExtended response with a slight rise in the high frequencies
Price at launch (Europe)RRP €149.00 ex VAT; £149.00 inc VAT (UK)
From the spec sheet (Recording Hacks copy)
OutputLow impedance balanced, pin 2 hotp. 1
Operating temperatureAvoid more than 43 °C (110 °F) for long periods, and very high humidity

Documents

Copies kept by Mic Archive, because manufacturers move and drop their documents. Each is © Audio-Technica, unchanged, with its original address.

Product page on audio-technica.comRecording Hacks

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