Cardioid Condenser Microphone


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Cardioid Condenser Microphone


A marriage of technical precision and artistic inspiration, the AT4040 features an advanced large diaphragm, tensioned specifically to provide smooth, natural sonic characteristics. Designed as a multi-purpose performer, this externally polarized (DC bias) true condenser microphone offers exceptionally low noise, wide dynamic range and high SPL capability for greatest versatility. Being symmetrical and transformerless the microphone is totally free of the distortion associated with conventional transformer-coupled outputs. Its fast response to transients contributes to the open, transparent reproduction of even the most troublesome of instruments and sound effects.

  • Technically-advanced large diaphragm tensioned specifically to provide smooth, natural sonic characteristics
  • Externally polarized (DC bias) true condenser design
  • Exceptionally low noise, wide dynamic range and high-SPL capability for greatest versatility
  • Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients
  • Precision-machined, nickel-plated brass, acoustic element baffle provides enhanced element stability and optimal sensitivity
  • Open acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflections
  • State-of-the-art surface-mount electronics ensure compliance with Audio-Technica's stringent consistency and reliability standards
  • Custom shock mount provides superior isolation
  • Switchable 80 Hz hi-pass filter and 10 dB pad


Element Externally-polarized (DC bias) condenser
Polair patroon Cardioid
Frequentierespons 20 - 20,000 Hz
Lage frequentie roll-off 80 Hz, 12 dB/octave
Gevoeligheid open circuit -32 dB (25.1 mV) re 1V at 1 Pa
Maximaal geluidingangsniveau 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL, with 10 dB pad (nominal)
Dynamisch bereik 133 dB, 1 kHz at Max SPL
Signaal-ruisverhouding 82 dB, 1 kHz at 1 Pa
Vereisten fantoomvoeding 48V DC, 4.2 mA typical
Schakelaars Flat, roll-off ; 10 dB pad (nominal)
Gewicht 360g
Afmetingen 6.69" (170.0 mm) long, 2.10" (53.4 mm) maximum body diameter
Uitgangsconnector Integral 3-pin XLRM-type
Meegeleverde accessoires AT8449a shock mount for 5/8"-27 threaded stands; protective carrying case



AT4040 Declaration of Conformity
AT4040 Frequency Response
AT4040 Polar Pattern
AT4040 Specification Sheet