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EV Model 667A Cardioid Broadcast Microphone (santa cruz)
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$625 No trades.
Integral equalizer provides 6 response curve settings and 3 impedance settings @ 250Ω, 150Ω, or 50Ω.
Detailed programming instructions can be found here: https://coutant.org/667a/index.html
Note: Original condition except for Acoustifoam windscreen which 'decomposed' and was removed. A bit of history: The EV 666 was the 1st generation of the Variable-D mics followed by the Continously Variable D model EV 688 and 667A - with the further design enhancements: very low inducement to hum, isolation cage for boom mounting, and the ability to use in close proximity to lights, and AC lines.
Engineering data from ELECTRO-VOICE:
"An outstanding feature of the 667 A is the self-
contained computer-type programming board which
permits a total of six different frequency response
curves. The programming panel is part of a versa-
tile passive equalizer which is completely self-
contained: no external equipment or special con-
necting cables are required. The variations from
flat response thus made available permit the 667A
to overcome acoustical problems and background
noise, make possible special effects, and enable
its use mixed with existing microphones of differing
responses.
Use of Continuously Variable-D, a highly developed
version of the patented Electro-Voice Variable-DSl
principle, makes possible extremely uniform rejection
of unwanted background noise. "
SPECIFICATIONS
Generating Element: Dynamic
Frequency Response: Uniform 40 to 10,000 cps
Polar Pattern: Cardioid (see Figure 2)
Impedance: 50, 150, 250 ohms, selected at
rear of case by moving one pin.
Output Level:
-5I db on 250 ohm tap
-5I db on 150 ohm tap
-52 db on 50 ohm tap
(Ref: 1 mw / 10 dynes / cm 2 ,
response selector in A-I position)
EIA Sensitivity Rating:
-149 db on 250 ohm tap
-145 db on I50 ohm tap
-I50 db on 50 ohm tap
(response selector in A-I position)
Switching: Response and impedance selection
accomplished with gold- silver
plated pins.
Hum Pickup Level: -121 dbm, (ref. .001 gauss field)
Connected for I50 ohms when shipped.
Diaphragm: Electro- Voice Acoustalloy®
Cable Connector: Cannon UA-3-11
Net Weight: 1 lb., 8 oz.
EV's engineering spec sheet: https://coutant.org/667a/667a.pdf )
Tags: Neumann, Sennheiser, Telefunken, AKG, EV, Electrovoice, Electro-Voice, RE 20, Cardioid, Dynamic, Broadcast, Recording, Podcast