 Most current AKG-branded products are made in Harman's overseas production facilities.Among its professional products especially noteworthy is the first C 12 (introduced in 1953) and its successors and alternate versions, which include the Telefunken Ela M 250 and M 251 (1960), the C 24 stereo microphone, the C 412, and over a dozen different models which have carried the designation "C 414" in various forms.Those microphones are equipped with the famous CK12 large diaphragm capsule designed by AKG's engineer Konrad Wolf.