With directivity equal to microphones 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 microphones up to 50 percent longer.
FEATURES
• 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 microphones 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)
SPECIFICATIONS
Element: Externally polarized (DC bias) capacitor
Polar Pattern: Line + gradient
Frequency Response: 20-20,000 Hz
Low Frequency Roll-off: 80 Hz, 18 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: 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 Case Style: SG3
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