It is a condenser microphone that is inentical in sensititviy and frequency response within 1.5 dB. Excellent for stereo recording of a classical.
Sensitivity: -66dB +/- 3dB (0 dB=1V/µ bar, at 1KHz)
Impedance: 200K ohm balanced
Frequency Response: 30Hz~20KHz
Standard operation Voltage: DC 9~52V
Net Weight: 180g +/- 20g