1. XXX = a two or three (possibly four on newer amps) digit number indicating the manufacturer. (see chart below) YY = is a one or two digit code indicating the year. If it’s a one digit year you need to determine the correct decade of the amp some other way. ZZ = a number from 1 – 52 indicating the week of the year.
2. Shop for the Electro-Voice CO4 Cobalt Dynamic Mic and receive free shipping on your order and the guaranteed lowest price.
3. Cardioid dynamic microphone. Description and Applications The Electro-Voice Model 664 is a cardioid microphone of the dynamic type with only one moving element.

Speaker EIA Rules Speaker corporation EIA codes There are usually several ways of identifying a manufacturer, or specific part quantity of a component in most audio gear that's happen to be manufactured since the mid 1950s. There's an EIA (Electronic Industries Association) program code that recognizes the producer, or organization, sometimes rubber-stamped (either in printer ink, or metallic embossing, or Identity label) on the particular component - in this situation the loudspeaker. Sometimes there is certainly also another collection of numbers stamped on the piece, this is definitely the OEM (Original Equipment Producer) part numbers above ór below the ElA code, and in some instances parts manufacturers elected not to include the EIA rules, so not really all components possess them. These 'Program code' forms were not really completely standardised, but a Iittle deciphering will generally yield the info that's required to determine the speaker in question. For instance if you have got 220325 on a loudspeaker, you can inform that it's i9000 a Jensen speaker, but the 12 months is usually either 1973, 1963, or 1953 from the '3', and the '25' is usually the week of creation.

The design kind, or amount, is occasionally stamped on the speaker frame simply because well; for illustration G10R, or M10Q.

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Comments about Electro-Voice CO4 Cobalt Dynamic Mic: I use this mic like a SM57. The SM57 may be a little better on drums but I like this one of acoustic instruments.