Tube Condenser Microphone  
 
Tech Spec –  
TYPE: Tube-Type True Condenser Microphone 
CAPSULE: 34mm CK12 styled edge-terminated capsule 
POLAR PATTERNS: 9 patterns selectable at PS-12 power supply 
FREQUENCY RESPONSE: 20Hz - 20kHz +/- 3dB 
OUTPUT IMPEDANCE: <=250 Ohms / transformer isolated 
MAXIMUM SPL: 136dB (0.5% THD @1000Hz) 146dB with pad engaged 
EQUIVALENT NOISE LEVEL: <17dB 
S/N RATIO: 78dB 
SENSITIVITY: -35dB 
OUTPUT CONNECTOR: Male XLR 7 pin w/ special power supply & cables 
TUBE TYPE: 6072A (mil-spec). Lower noise than the more common 12AY7 
HIGH-PASS SWITCH: 80 Hz 6dB/octave Switch 
ATTENUATION SWITCH: -10dB Switch 
POWER REQUIREMENTS: Power supply with low-noise circuit 
FINISH: Polished Nickel trim / Metallic Cabernet Red Body 
WEIGHT: .8 kgs / 1.8 lbs. 
DIMENSIONS: 237mm x 46mm / 9.5" x 1.8" 
Regulated plate voltage supply 
Designed and assembled in the USA