BP4073 Line + Gradient Condenser Microphone


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With an overall length of just 9.17” and weight of just 3.5 oz, this microphone adds virtually no heft to the end of a fish pole or the top of a minicam. Through the use of an innovative Audio-Technica design, the interference tube of the BP4073 provides a narrow acceptance angle, effective for long-distance pickup. The highly directional microphones offer low self-noise and are fully RoHS-compliant – free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS).


• 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
• Switchable 80 Hz hi-pass filter & 10 dB pad
• Rugged housing made of lightweight structural-grade aluminum alloy
• 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: 20-20,000 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: 99 g (3.5 oz)
Dimensions: 233.0 mm (9.17") 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; AT8144 windscreen; two O-rings; protective carrying case
Audio-Technica Case Style: SG2
More Information
Weight 1.650000
Length 19.5
Width 19.5
Height 2.4
Color Black
Manufacturer Audio-Technica
Manufacturer Model Number BP4073
Manufacturer Part Number BP4073
UPC 4961310104023
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