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Audio Technica - BP4073

Audio Technica - BP4073
Audio Technica - BP4073 Audio Technica - BP4073
Product Code: BP4073
Sales SKU: AT BP4073
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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 boom 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


Externally polarized (DC bias) capacitor

Polar Pattern

Line + gradient

Frequency Response

20-20,000 Hz

Low Frequency Response Roll-Off

80 Hz, 12 dB/octave

Open Circuit Sensitivty

-29 dB (35.5 mV) re 1V at 1 Pa


50 ohms

Maximum Input Sound Level

141 dB SPL, 1 kHz at 1% T.H.D.; 151 dB SPL, with 10 dB pad (nominal)


13 dB SPL

Dynamic Range (typical)

128 dB, 1 kHz at Max SPL


81 dB, 1 kHz at 1 Pa

Phantom Power Requirements

48V DC, 4.8 mA typical


Flat, roll-off; 10 dB pad (nominal)

Battery Current / Life

0.4 mA / 1200 hours typical (alkaline)

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


99 g (3.5 oz)


233.0 mm (9.17") Long x 21.0 mm (0.83") Diameter

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