The Electro-Voice Model 636 is an omni-directional microphone of the dynamic type with only one moving element. The slim styling of the 636 was specifically designed to provide the flexibility and ruggedness required for general public address use. Incorporating the exclusive Electro-Voice Acoustalloy® diaphragm material, the Model 636 is nearly impervious to extremes of temperature and humidity. The mechanical nesting principle of design by which the internal parts of the microphone are closely fitted one within another results in a mechanical structure that almost completely eliminates damage from mechanical shock.
The 636 is supplied with a built-in blast filter of an acoustically treated wire mesh grille to minimize wind and breath blasts. The case may be swiveled 90° on the microphone stud which is provided with a standard 5⁄8″-27 thread for mounting the unit on an upright stand. The stud is easily removed from the stand when the microphone is to be hand-held.
Element: Dynamic
Frequency Response: Uniform 60 to 13,000 Hz
Polar Pattern: Omni-directional
Impedance: 150 ohms and high impedance. 150 ohms balanced to ground
Output Level, High Impedance: –58 dB (0 dB = 1 volt/dyne/cm²) Output Level, 150-ohm Impedance: –58 dB (0 dB = 1 mw/10 dynes/cm²)
EIA Sensitivity Rating: –154 dB
Diaphragm: Electro-Voice Acoustalloy®
Case Material: Steel
Finish: Satin chrome; also available with gold finish; specify 636G
Dimensions: 11⁄8″ diameter, 10¼″ long
Net Weight: 15 ounces
Switch: On/Off, sliding contact shorts element in “Off” position