HMx 27 : 27 SERIES HEADSET : Specifications : Microphone
Microphone
BKE 10‑4 microphone 
Transducer principle
• pre-polarized condenser microphone
 
Pick-up pattern
• Cardioid
 
Frequency response
• 40 Hz to 20 kHz
 
Sensitivity
• 16 mV/Pa @ 1 kHz
 
Maximum sound pressure level
• 150 dB SPL, 1 kHz, 0.5% THD
 
Connection type
• Phantom powering P12–P48
 
Power supply
• 12 V to 48 V
 
BMD 434 microphone 
Transducer principle
• dynamic
 
Sensitivity
• Hyper-cardioid
 
Frequency response
• 40 Hz to 18 kHz
 
Sensitivity
• 0.5 mV/Pa @ 1 kHz
 
Impedance
• 300 Ω