Dating an electrovoice 664
“It really is all in the name,” states Guy Low, Creative Manager at Electro-Voice.“In all we do, we serve justice to the human voice, with clarity, and with intelligibility.
For many years the problem of getting the microphone close enough to the performers without it being in the camera shot was a constant challenge!On the back of the Fugs‘ second album on ESP, they’re pictured holding EV 664s in their hands.Hopefully the mics rested on stands, because their large bodies make them awkward to carry.In this case, the idea was to make a better and more affordable microphone.So in 1927, with a drill press and a milling lathe, Al Kahn and Lou Burroughs set up shop in South Bend, Indiana and expanded from PA system installations to microphone manufacturing.The 664 relies on the Variable-D® design principle to reduce proximity effect.
In a Variable-D microphone, ports in the microphone body are placed at the capsule’s rear entry.
While the 664 does not have the exaggerated low-end boost of proximity effect, it has a recognizable peak in low-mids.
This peak can transform a rich-sounding male vocalist into Orson Welles or add body to a thinner vocal take.
As the frequency response rises it becomes a line mic with considerable attenuation of unwanted sound from the sides.
Thus the new ‘Cardiline’ design provides excellent directivity right across its operating frequency range.
Sound entering from the rear at different path lengths for different frequencies results in a more even pressure gradient over a wider bandwidth.