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Description:

Manufacturer's website

With directivity equal to mics up to 50 percent 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 inspot in miking techniques in the music studio or theater, the 15.55 in-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 percent longer
- Rugged housing made of lightweight structural-grade aluminum alloy
- Transformerless design for improved pickup of transients
- Switchable 80 Hz high-pass filter and 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, 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 percent 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 in) long, 21.0 mm (0.83 in) maximum body diameter
OUTPUT CONNECTOR	Integral 3-pin XLRM-type
ACCESSORIES FURNISHED	AT8405a stand clamp for 5/8 in-27 threaded stands; 5/8 in-27 to 3/8 in-16 threaded adapter; AT8145 windscreen; two O-Rings; protective carrying case
AUDIO-TECHNICA CASE STYLE	SG3

SPECIFICATION GRAPHS
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	POLAR PATTERN
	FREQUENCY RESPONSE