A: The U 67 is considerably more costly to manufacture than other Neumann microphones. It includes some very expensive components such as a large custom designed output transformer, a premium … Following their … It retained the K67-style capsule of the U67, but replaced the tube amplifier circuit with a FET/transformer design. Not one mic sounded the exact same. Note: This article is a segment of a multi-part series detailing the history and technology behind some of the industry's most beloved and … Side note: You can readily swap head baskets, bottom bells, frame supports, and housing tubes between any U67, M269, U87, and U87Ai without modification; but you cannot replace a defective pattern or attenuation switch on an original U67 … Old vintage microphones, like the U67, U47 or U87, had a unique character to them. Vintage Microphones, Part 2: Neumann M49, M50, U67 and U87. In short, the U87 … The U 87 was designed as a solid-state version of the U 67 tube microphone. There’s going to be unique characteristics among each one. They were built by hand and weren’t manufactured with 100% accurate precision. The K67 is employed in both the modern U67 and U87 microphone. All in all, the U67 was a dramatic step forward in microphone technology and design for the new decade of the 1960s. Don’t get hung up if your U87 …