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The Electro-Voice Model 665
dynamic cardioid microphone

Electro-Voice 665 on stand


Widely used in radio and TV announce booths, the 665 is also an excellent, economical, all-purpose microphone. It is popular for newscasts and provides the needed separation when several microphones are used at round table conferences.

Polar pattern
Figure 1 — Polar pattern

The Electro-Voice 665

Predictable background noise rejection and smooth, wide-range response result from the use of three sound entrances located at different distances from the back of the diaphragm. These constitute the E-V Variable-D® microphone. In combination, these three entrances form one effective back entrance which varies in distance from the diaphragm inversely with frequency. The resulting phase and amplitude conditions produce a uniform cardioid pattern over a wide frequency range.

Frequency response
Figure 2 — Frequency response

The Electro-Voice 665

Because of its excellent and uniform polar response, the Model 665 is especially useful in locations where ambient noise and severe reverberation exist. It is equipped with an Acoustifoam™ pop filter which minimizes wind and breath blasts. The model 665 can be used on a floor or desk stand, or carried in the hand.

Figure 3 — Dimensions

The Electro-Voice 665

Figure 4 — Wiring diagram

Impedance switch

The Electro-Voice 665
Photographs are courtesy of Dennis Schrank


  • Generating Element: Dynamic

  • Frequency Reponse: 70 to 13,000 Hz

  • Polar Pattern: Cardioid

  • Impedance: 50 and 250 ohms. Recessed switch in microphone stud permits quick, easy selection of either impedance. Line balanced to ground and phased

  • Output: 50-ohm impedance: −58 dB* EIA sensitivity rating, −151 dB
    250-ohm impedance: −58 dB* EIA sensitivity rating, −150 dB
    *dB = 1 mW/10 dynes/cm²

  • Diaphragm: Electro-Voice Acoustalloy®

  • Case Material: Die cast zinc

  • Dimensions: Diameter: 178 inches maximum
    Length: 7716 inches, not including stud

  • Finish: Non-reflecting gray

  • Net Weight: 1 pound, 10 ounces, without cable

  • Cable: 18-foot three-conductor shielded neoprene-jacketed broadcast type

  • Cable Connector: Cannon XL-3-12

  • Stand Coupler: 58 inch-27 thread on stud

Spec sheet
Download the specification sheet for this mic.


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