BP4071L Line + Gradient Condenser Microphone


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At 21.22” long, Audio-Technica’s new BP4071L is among the longest shotgun microphones on the market today. Originally developed at the request of broadcast professionals, this microphone boasts an extremely narrow polar pattern, excellent rejection from the sides and rear of the microphone, along with crisp, intelligible audio reproduction. It offers switchable low-frequency roll-off and a 10 dB pad, and comes generously equipped with a stand clamp, windscreen, and case.


• 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)

Element: Externally polarized (DC bias) capacitor
Polar Pattern: Line + gradient
Frequency Response: 20-18,000 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: 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; AT8147 windscreen; two O-rings; protective carrying case
Audio-Technica Case Style: SG5
More Information
Weight 1.900000
Length 19.5
Width 4.5
Height 2.25
Color Black
Manufacturer Audio-Technica
Manufacturer Model Number BP4071L
Manufacturer Part Number BP4071L
UPC 4961310104030
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