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Audio-Technica ATM450
Photo: Audio-Technica, from its spec sheet (Recording Hacks copy), p. 1.

Audio-Technica

Audio-Technica ATM450

Small-diaphragm condenser (fixed-charge back plate), cardioid, side-address stick instrument mic, with 80 Hz high-pass and 10 dB pad switches

Type
Condenser (electret)
Pattern
Cardioid
Sensitivity
−41 dBV/Pa
Self-noise
25 dB(A) computed
Max SPL
152 dB SPL
Impedance
200 Ω
Rated range
40 – 20k Hz

Frequency response

Angle
Distance

Frequency response: from the spec sheet, p. 2. Printed under the graph: "12\" or more on axis" (30 cm or more); "frequency response: 40–20,000 Hz". 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, p. 2. "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−41 dBV/Pa (8.9 mV/Pa), open circuit. "–41 dB (8.9 mV) re 1V at 1 Pa".p. 2
Self-noise25 dB(A), equivalent SPL, A-weighted. Not stated; computed as 94 - 69 (signal-to-noise ratio, "Typical, A-weighted, using Audio Precision System One").
Max SPL152 dB SPL, 1 kHz, 1% THD; also 162 dB SPL, with 10 dB pad (nominal). The 2006 sheet gives only the 152 dB figure.
Signal-to-noise ratio69 dB, 1 kHz at 1 Pa; typical, A-weighted
Dynamic range127 dB, 1 kHz at max SPL, typical
Output impedance200 ohm
Rated frequency range40 Hz to 20 kHz. Tolerance not stated.
Poweringphantom 11-52 V DC. "11-52V DC, 3.5 mA typical".
Current draw3.5 mA, typical
Low cutflat, roll-off; 80 Hz; 12 dB/octave; high-pass. "80 Hz, 12 dB/octave"; switches "Flat, roll-off; 10 dB pad". The 2006 sheet says "80 Hz, 18 dB/octave".
Pad−10 dB. Switch "10 dB pad"; "162 dB SPL, with 10 dB pad (nominal)".
ConnectorXLR-3 male (integral). "Integral 3-pin XLRM-type".
Weight98 g. "98 g (3.5 oz)".
Dimensions21 × 126.9 mm. Diameter × length: "126.9 mm (5.00") long, 21.0 mm (0.83") diameter".
Supplied accessoriesAT8471 isolation clamp for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 threaded adapter; windscreen; soft protective pouch
OutputLow impedance balanced, pin 2 hotp. 1
DesignSide-address stick, all-metal construction
SwitchesRecessed: slide with a paperclip tip towards the "bent" line for the high-pass filter, towards -10 for the pad
Case styleS11p. 2
Operating temperatureAvoid more than 43 °C (110 °F) for long periods, and very high humidityp. 1

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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