The AT4040 side-address condenser microphone features an advanced large diaphragm tensioned specifically to provide smooth, natural sonic characteristics. A marriage of technical precision and artistic inspiration, the AT4040 offers exceptionally low noise, wide dynamic range and high-SPL capability for greatest versatility. This ultra-consistent microphone may be used with confidence in a wide variety of studio and live miking applications, even under the stringent demands of digital recording systems. The AT4040’s low-noise circuitry is symmetrical and transformerless, resulting in exceptional transient response and clean output signals for 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 A-T'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
  POLAR PATTERN	Cardioid
  FREQUENCY RESPONSE	20-20,000 Hz
  LOW FREQUENCY ROLL-OFF	80 Hz, 12 dB/octave
  OPEN CIRCUIT SENSITIVITY	-32 dB (25.1 mV) re 1V at 1 Pa
  IMPEDANCE	100 ohms
  MAXIMUM INPUT SOUND LEVEL	145 dB SPL, 1 kHz at 1% T.H.D.;  155 dB SPL, with 10 dB pad (nominal)
  NOISE	12 dB SPL
  DYNAMIC RANGE (typical)	133 dB, 1 kHz at Max SPL
  SIGNAL-TO-NOISE RATIO	82 dB, 1 kHz at 1 Pa
  PHANTOM POWER REQUIREMENTS	48V DC, 4.2 mA typical
  SWITCHES	Flat, roll-off;  10 dB pad (nominal)
  WEIGHT	12.7 oz (360 g)
  DIMENSIONS	6.69" (170.0 mm) long,  2.10" (53.4 mm) maximum body diameter
  OUTPUT CONNECTOR	Integral 3-pin XLRM-type
  ACCESSORIES FURNISHED	AT8449a shock mount for 5/8"-27 threaded stands; microphone dust cover; protective carrying case