AT4040 Cardioid Condenser Microphone
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.
Check out audio samples and interior views of the AT4040 and other 40 Series side-address condensers
* 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
SPECIFICATIONS
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 	AT8449 shock mount for 5/8"-27 threaded stands; microphone dust cover; protective carrying case
AUDIO-TECHNICA CASE STYLE 	R1
					
	  