Audio-Technica BP4071 Audio-Technica BP4071
Audio-Technica BP4071 Audio-Technica BP4071

Audio-Technica BP4071

Line + Gradient Condenser Shotgun Microphone, 15" Long

MFR # BP4071
UPC # 4961310104016
Retail Price $1219.00
Performance Audio Savings -$269.59
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Your Price $949.41

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Audio-Technica BP4071
With directivity equal to mics up to 50% longer, the BP4071 has been specially created to meet the pickup demands of broadcasting, film/TV sound, professional recording, wildlife recording and theater sound reinforcement. Particularly useful for miking dynamic action in film/TV audio as well as in "spot" miking techniques in the music studio or theater, the 15.55"-long BP4071 provides a low noise floor and direct-coupled, balanced output for a clean signal even in high-output conditions. Audio-Technica has pioneered an interference tube design in the BP4071 that provides the same directivity as mics up to 50 percent longer.


  • 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

  • Rugged housing made of lightweight structural-grade aluminum alloy

  • Transformerless design for improved pickup of transients

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

  • 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


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

  • WEIGHT: 136 g (4.8 oz)

  • DIMENSIONS: 395.0 mm (15.55") 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; AT8145 windscreen; two O-Rings; protective carrying case


Audio-Technica BP4071 Documents
Spec Sheet
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From a beginning in state-of-the-art phono cartridges, Audio-Technica has expanded over the years into high-performance headphones, microphones, mixers and electronic products for home and professional use. In each new area the goal has been to create innovative, problem-solving products
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