Audio-Technica BP4073 Line Plus Gradient Condenser Microphone

Ideal for film, Audio-Technica's lightweight BP4073 is easy to mount on a minicam and can pick up distant sounds through its narrow acceptance angle.

With an overall length of just 9.17-inches and weight of just 3.5 oz, the Audio-Technica BP4073 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 mics 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 mics 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, 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: 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
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1.5 lbs
Shipping Dimensions: 19 x 5 x 2 in
Manufacturer Part Number (MPN): BP4073

For support or warranty questions, please contact the manufacturer:
Phone: 330-686-2600 x5000


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