Audio-Technica
Audio-Technica AT4040
Large-diaphragm cardioid condenser, transformerless, with 80 Hz high-pass and 10 dB pad
Power Phantom 48 V DC.
- Type
- Condenser
- Pattern
- Cardioid
- Sensitivity
- −32 dBV/Pa
- Among 204 condensers: more output than 83%
- Among 311 mics: more output than 88%
- Self-noise
- 12 dB(A)
- Among 258 condensers: quieter than 74%
- Among 272 mics: quieter than 75%
- Max SPL
- 145 dB SPL
- Among 277 condensers: takes louder sound than 80%
- Among 343 mics: takes louder sound than 78%
- Rated range
- 20 – 20k Hz
vs 75 side-address condensers
More output than 77% of 75 side-address condensers.
Each stripe is one side-address condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 99 side-address condensers
Quieter than 51% of 99 side-address condensers.
Each stripe is one side-address condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 107 side-address condensers
Takes louder sound than 84% of 107 side-address condensers.
Each stripe is one side-address condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Proximity effect: the bass it gains up close
From the spec sheet, p. 2.
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
From the spec sheet, p. 2.
Full circle, 0° at the top, 5 dB per division. Measuring conditions not stated.
In practice
All specs
| From the spec sheet | ||
|---|---|---|
| Capsule | large diaphragm; nickel-plated brass acoustic element baffle"Technically advanced large diaphragm tensioned specifically to provide smooth, natural sonic characteristics"; "Precision-machined, nickel-plated brass, acoustic element baffle". | p. 1 |
| Sensitivity | −32 dBV/Pa (25.1 mV/Pa)open circuit. "–32 dB (25.1 mV) re 1V at 1 Pa". | p. 2 |
| Self-noise | 12 dB(A)typical, A-weighted (Audio Precision System One). "12 dB SPL", footnote "Typical, A-weighted, using Audio Precision System One". | |
| Max SPL | 145 dB SPL1 kHz, 1% THD; also 155 dB SPL, with 10 dB pad (nominal) | |
| Signal-to-noise ratio | 82 dB1 kHz at 1 Pa; typical, A-weighted | |
| Dynamic range | 133 dB1 kHz at max SPL, typical | |
| Output impedance | 100 ohmLow impedance balanced. | |
| Rated frequency range | 20 Hz to 20 kHzTolerance not stated. | |
| Powering | phantom 48 V DC"48V DC, 4.2 mA typical"; page 1: "requires 48V phantom power". | |
| Current draw | 4.2 mAtypical | |
| Low cut | off, 80 Hz, 12 dB/octave; 80 Hz; 12 dB/octave; high-pass"80 Hz, 12 dB/octave"; switch "Flat, roll-off". | |
| Pad | −10 dB"10 dB pad (nominal)". | |
| Connector | XLR-3 male (integral)"Integral 3-pin XLRM-type". | |
| Weight | 360 g"360 g (12.7 oz)"; the 2002 leaflet says "less accessories". | |
| Dimensions | 53.4 × 170 mmMaximum body diameter × length: "170.0 mm (6.69") long, 53.4 mm (2.10") maximum body diameter". | |
| Supplied accessories | AT8449 shock mount for 5/8"-27 threaded stands; dust cover; protective carrying case | |
| Output stage | Transformerless | p. 1 |
| Output | Low impedance balanced, pin 2 hot | |
| Angle of acceptance | 120° (uniform) | |
| Case style | R1 | p. 2 |
| Operating temperature | Avoid more than 43 °C (110 °F) for long periods, and very high humidity | p. 1 |
Documents
- AT4040 Cardioid Condenser Side-Address Microphonespec sheet, 0001-0200-01
- AT4040 Cardioid Condenser Microphoneuser leaflet, P51464-EN
Copies kept by Mic Archive (manufacturers move and drop their documents), unchanged, with their original addresses. Each is © its publisher.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.