Description
The BP4071L is an externally polarized (DC bias) condenser microphone with a line + gradient polar pattern. It is designed for use in professional recording, broadcasting, film/TV/video production, wildlife recording, high-quality sound reinforcement and other demanding applications. The microphone requires 48V phantom power for operation. The microphone's highly directional polar pattern provides a narrow acceptance angle along with crisp, intelligible audio reproduction desirable for long-distance sound pickup.
The output of the microphone is a 3-pin XLRM-type connector. The microphone is equipped with a switchable 10 dB pad and a switch that permits choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass filter).
The microphone is enclosed in a rugged aluminum alloy housing. The included AT8405a stand clamp permits mounting on any microphone stand with 5/8"-27 threads.
Features
- Overall length of 21.22” with an extremely narrow, highly directional pickup pattern
- Ideal for use in broadcasting, film/TV production, and theater sound reinforcement
- Direct-coupled, balanced output ensures a clean signal even in high-output conditions
- Transformerless design for improved pickup of transients
- Rugged housing made of lightweight structural-grade aluminum alloy
- Interference tube design for narrow acceptance angle
- 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 20-18,000 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
PHANTOM POWER REQUIREMENTS 48V DC, 4.8 mA typical
SWITCHES Flat, roll-off; 10 dB pad (nominal)
WEIGHT 175 g (6.2 oz)
DIMENSIONS 539.0 mm (21.22") 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 SG5
