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 Hzhigh-pass filter & 10 dBpad
RoHS-compliant - free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS)
ELEMENT: Externally polarized (DCbias) capacitor
POLAR PATTERN: Line + gradient
FREQUENCY RESPONSE: 20-20,000 Hz
LOW FREQUENCYROLL-OFF: 80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY: -29 dB (35.5 mV) re 1V at 1 Pa
IMPEDANCE: 50 ohms
MAXIMUM INPUT SOUNDLEVEL: 141 dBSPL, 1 kHz at 1% T.H.D.; 151 dBSPL, with 10 dBpad (nominal)
NOISE: 13 dBSPL
DYNAMIC RANGE (typical): 128 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO: 81 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS: 48VDC, 4.8 mA typical
SWITCHES: Flat, roll-off; 10 dBpad (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; AT8145windscreen; two O-Rings; protective carrying case
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