Neumann.Berlin U 67 User's Manual
Contents
1. e leased as the U 60 to select re cording studios for testing It was re named U 67 with the start of its market introduc tion to honor its renowned prede cessor and provid ing continuity with the U 47 The U 67 quickly gained a reputa tion for its unprec edented versatili ty making it the ideal microphone for universal appli cations The Neu mann U67 be came known as a true workhorse for professional re cording studios everywhere Several thousand were sold in the first five years of its production and as the U 67 gained in popularity the U 47 declined An era ended when the last U 47 was delivered in 1965 with the U 67 having taken the market by storm and firmly established as the legitimate successor Especially in the US this microphone had become so well known that our sales reps there were able to release an effective ad with only a picture of the U 67 and the words ask anyone The understatement was enough Owing to its quality ver satility and shape the Neumann U 67 became the very symbol of a high quality microphone often imitated but never duplicated Te mOSTERN GERMAN2. e but with two separate back electrodes In addition to the abili ty to match the two halves exactly it also become possible for this capsule to respond optimally for all three patterns The result is the K 67 capsule scheduled to be employed in the successor to the U 47 In the 1950s it had be come fashionable for many popular vocalists to sing al most directly into the mi crophone This practice produces a noticeable in crease in low frequency response due to the so called proximity effect Through this the voice gains volume at low fre quencies and sounds full er Too much bass though can be a problem and to counter it a switchable circuit was designed to roll off low frequencies A switch located on the microphone head permits chang ing the low frequency attenuation to become effective at 100 Hz for proximity compensation The EF 86 tube op erates as triode in an anode amplifier configuration into an output transformer with separate feedback windings The output transformer s special construction helps to eliminate hum and allows internal impedance matching with the fol lowing preamplifier yw Finally in 1960 the new micro phone was born which ultimately matured to be come the Neu mann U 67 Its form is a variation of the typical cone shaped mi crophone It can easily be disas sembled without tools and incorpo rates all the above mentioned fea tures The proto type series was r
3. y SN 4 N NEUMANN A gt gt THE MICROPHONE COMPANY U 67 The Workhorse The news came as a shock to Neumann at the end of the 1950s when the German electronics firm Telefunken told Neumann that because it was the only remaining buyer of its steel tube VF 14 M further production of the tube was no longer profitable for the company After one last lot was produced the volume of which Neumann could decide the tube s production ceased forever With this announce ment the end of the world renowned Neumann U 47 mi crophone drew near At atime when thousands of U 47 were in use worldwide Neumann began to intensify its development of a succes sor The company had already been producing the KM 56 miniature microphone for a few years That microphone fea tured selection of all three major directional patterns omni directional cardioid and figure eight Neumann wanted its new model at least to have these switchable functions As for directionality the legendary Neumann M 7 capsule made it relatively simple to realize both the cardioid and omni directional pickup patterns However an exact figure eight characteristic posed more of a challenge because the dual diaphragm in the M 7 shares a common central elec trode The accuracy of a bi directional pickup depends on the precise correlation of the two capsule halves This prob lem led to the development of a similar dual capsul
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