M9 Cardioid Condenser Tube Microphone The M9 cardioid condenser tube microphone is one of the ideal devices, imagine the audio of glass, the audio of greatly cut amazingly. M9 cardioid condenser tube microphone is wide and solid with glimmer, details and shiny as well. This audio is only possible using the large-diaphragm capsule, 200 volts and the 12AX7 double triode. This tone goes up from the age groups, and then releases into the future through the high-power transformer less drive. Capabilities include hi-pass narrow and attenuator. The M9 comes packed with the flexible impact install, rotate install, devoted wire and 200V energy in a resilient road case. The M9 series cardioid condenser microphone requires 115/230 VAC energy supply. M9 Specifications Operating Principle: Externally-biased condenser Polar Pattern: Cardioid Frequency Response: 20Hz to 20KHz Sensitivity: -37dBV (14mV) @ 1 Pa Impedance: 200 ohms Max SPL: 155dB, 1% THD, attenuator engaged Self Noise: 16dBA Hi-pass Filter: 100Hz, 6dB/oct Attenuator: 16dB