BP4073 Audio-Technica | Audio-Technica

Line + Gradient Condenser Microphone

BP4073

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 high-pass filter & 10 dB pad

Rugged housing made of lightweight structural-grade aluminum alloy

With an overall length of just 233mm and weight of just 99g, 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.

BP4073 Specifications

Element

Externally polarized (DC bias) condenser

Polar Pattern

Line + gradient

Frequency Response

20 ~ 20,000Hz

Low Frequency Roll-Off

80Hz,12dB/octave

Open Circuit Sensitivity

-29 dB (35.5 mV) re 1V at 1 Pa

Impedance

50 Ω

Maximum Input Sound Level

141 dB SPL, 1 kHz at 1% T.H.D.;
151 dB SPL, with 10 dB pad

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

48V DC, 4.6 mA typical

Switch

Flat, roll-off; 10 dB pad (nominal)

Weight

99 g

Dimensions

21mm x 233mm (Diameter x Long)

Accessories Furnished

AT8405a stand clamp for ⅝”-27 threaded stands;
⅝”-27 to ⅜”-16 threaded adapter;
AT8144 windscreen;
two O-Rings;
protective carrying case