AT4071a Line + Gradient Condenser Microphone

With directivity equal to mics up to 50% longer, the AT4071a has been specially created to meet the critical long-distance pickup demands of broadcasting, film/TV sound, professional recording, wildlife recording and theater sound reinforcement. It is particularly useful for miking dynamic action in film/TV audio as well as in “spot” miking techniques in the music studio or theater. The mic provides extremely high output and a noise floor that is hardly measurable, much less audible. It may be used with confidence in distant miking applications and even under the stringent demands of modern digital recording systems. Audio-Technica has pioneered a unique interference tube design* in the AT4071a and AT4073a shotgun mics that provides the same directivity as mics up to 50 percent longer.

Designed for critical long-distance pickup in broadcasting, film/TV production, and theater sound reinforcement applications

Direct-coupled, balanced output ensures a clean signal even in high-output conditions

Exclusive acoustic design* provides same directivity as mics up to 50% longer
Switchable 150 Hz hi-pass filter

Rugged housing made of lightweight structural-grade aluminum alloy

* U.S. Patent No. 4,789,044

SPECIFICATIONS
ELEMENT	Externally polarized (DC bias) condenser
POLAR PATTERN	Line + gradient
FREQUENCY RESPONSE	30-20,000 Hz
LOW FREQUENCY ROLL-OFF	150 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY	-21 dB (89.1 mV) re 1V at 1 Pa
IMPEDANCE	100 ohms
MAXIMUM INPUT SOUND LEVEL	124 dB SPL, 1 kHz at 1% T.H.D.
NOISE	12 dB SPL
DYNAMIC RANGE (typical)	112 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO	82 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS	11-52V DC, 3.2 mA typical
SWITCH	Flat, roll-off
WEIGHT	5.5 oz (155 g)
DIMENSIONS	15.55" (395.0 mm) long, 0.83" (21.0 mm) diameter
OUTPUT CONNECTOR	Integral 3-pin XLRM-type
ACCESSORIES FURNISHED	AT8405a stand clamp for 5/8"-27 threaded stands; AT8135 windscreen; protective carrying case
AUDIO-TECHNICA CASE STYLE	SG3