Technical Specifications:

Acoustic operating principal: Pressure gradient or pure pressure (depending on capsule)

Directional pattern: Cardioid, omnidirectional, figure of 8 (depending on capsule)

Frequency response: 20Hz - 20kHz

Sensitivity (1kHz into 2.5kΩ): 50mV/Pa (+/- 10mV depending on capsule)

Rated impedance: 50Ω

Rated load impedance: Not less than 1kΩ

Noise level a-weighted (iec 651): Not more than 9dBV - 14dBV (depending on capsule)

Max output (1% thd into 2.5kΩ):+28dBV = 25.11 Vrms

Max spl (1.0% thd into 2.5kΩ): 139dB

Dynamic range (2.5kΩ load): 130dB

Power supply: External Powerstream unit

Current draw: Heater (6V DC) 300 mA, Plate (120V) 5mA - Typical