Audio Technica BP4073 Line+Gradient Condenser Microphone

With an overall length of just 9.17” and weight of just 3.5 oz, this microphone adds virtually no heft to the end of a fish pole or the top of a minicam. Through the use of an innovative Audio-Technica design, the interference tube of the BP4073 provides a narrow acceptance angle, effective for long-distance pickup. The highly directional mics offer low self-noise and are fully RoHS-compliant – free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS).

• Designed for use in broadcasting, film/TV production and theater sound reinforcement applications


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


• Innovative acoustic design provides same directivity as mics up to 50% longer


• Switchable 80 Hz hi-pass filter & 10 dB pad


• Rugged housing made of lightweight structural-grade aluminum alloy


• RoHS-compliant – free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS)

ELEMENT	Externally polarized (DC bias) capacitor
POLAR PATTERN	Line + gradient
FREQUENCY RESPONSE	20-20,000 Hz
LOW FREQUENCY ROLL-OFF	80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY	-29 dB (35.5 mV) re 1V at 1 Pa
IMPEDANCE	50 ohms
MAXIMUM INPUT SOUND LEVEL	141 dB SPL, 1 kHz at 1% T.H.D.; 151 dB SPL, with 10 dB pad (nominal)
NOISE	13 dB SPL
DYNAMIC RANGE (typical)	128 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO	81 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS	48V DC, 4.8 mA typical
SWITCHES	Flat, roll-off; 10 dB pad (nominal)
WEIGHT	99 g (3.5 oz)
DIMENSIONS	233.0 mm (9.17") long, 21.0 mm (0.83") maximum body diameter
OUTPUT CONNECTOR	Integral 3-pin XLRM-type
ACCESSORIES FURNISHED	AT8405a stand clamp for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 threaded adapter; AT8144 windscreen; two O-Rings; protective carrying case
AUDIO-TECHNICA CASE STYLE	SG2

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