Micrófono condesador vintage Crown CM-700 Made in USA

Micrófono condensador membrana pequeña Crown CM-700 muy raro en perfecto estado.

CM-700 Specifications
Type: Cardioid condenser.
Transducer: Back electret condenser.
Frequency response (typical): 30 Hz to 20,000 Hz
Polar pattern: Cardioid
Impedance: 190 ohms, balanced. Recommended minimum load impedance 1000 ohms.
Open-circuit sensitivity: 2.5 mV/Pa* (–52 dB re 1 V/Pa*).
Power sensitivity:–52 dB re 1 mW/Pa*.
Equivalent noise level (self-noise): 1 dB SPL typical A-weighted (0 dB=.0002 dyne/cm2).
S/N ratio: 73 dB at 94 dB SPL.
Maximum SPL for 3% THD: 151 dB with 48Vphantom, 142 dB with 12V phantom.
Polarity: Positive pressure on the diaphragm produces a positive voltage on pin 2 with respect to pin 3 of the output connector.
Output connector: 3-pin male pro audio connector.
Switch: Flat, low-cut and bass rolloff.
Operating voltage: Phantom power, 12 to 48 volts, positive voltage on pins 2 and 3 with respect to pin 1 of output connector.
Current drain: 3.2 mA..
*1 pascal = 10 microbars = 10 dynes/cm 2 = 94 dB SPL.