Audio-Technica 40 series studio microphones manual AT4040, Specifications

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	AT4040
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)
Noise1	12 dB SPL
Dynamic range (typical)	133 dB, 1 kHz at Max SPL
Signal-to-noise ratio1	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	360 g (12.7 oz)
Dimensions	170.0 mm (6.69") long,
	53.4 mm (2.10") maximum body diameter
Output connector	Integral 3-pin XLRM-type
Audio-Technica case style	R1
Accessories furnished	AT8449 shock mount for 5/8"-27 threaded
	stands; microphone dust cover; protective
	carrying case

In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.

1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

1Typical, A-weighted, using Audio Precision System One. Specifications are subject to change without notice.

frequency response: 20–20,000 Hz

50	100	200	500	1k	2k	5k	10k	20k
			Frequency in Hertz
LEGEND		12" or more on axis
		Roll-off
polar pattern
	330˚	0˚	30˚
300˚				60˚
270˚				90˚
240˚				120˚
					LEGEND
210˚			150˚			200 Hz
		180˚				1 kHz
						5 kHz
SCALE IS 5 DECIBELS PER DIVISION
						8 kHz

10 dB

Response in dB

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Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
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