CAD E60 Cardoid Condenser Microphone Features:
  - Operating Principle: Externally-biased condenser  
 - Polar Pattern: Cardioid  
 - Frequency Response:30Hz to 20KHz  
 - Sensitivity: -41dBV (8.9mV) @ 1 Pa  
 - Impedance: 300 ohms  
 - Max SPL: 140dB, 1% THD, attenuator engaged  
 - Self Noise: 22dBA  
 - Hi-pass Filter: 40Hz, 85Hz and 122Hz, 6dB/oct  
 - Attenuator: 10dB  
 - Power Requirements: P24, P48, 2mA