Rusalen Mihaylov's Photos

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LD47f LD47f is a recreation of the classic Neumann U47 FET microphone. Containing Cinemag output transformer and handmade capsule, which is a perfect replica of the K47. This is a single backplate capsule made famous by Georg Neumann & Co. The difficulties in reproducing a capsule like this is that it has both blind and through holes. The correlation between these holes controls the pattern and frequency response and is quite mathematically complex due to having only a single backplate. Other capsules with two backplates are much easier for pattern control in the design phase as the standing wave end point is a solid object [the opposing backplate] rather than a moving diaphragm.

New Life for the Old Sound Spirit Microphone model: LD87 LD47f is a recreation of the classic Neumann LD87 microphone. Containing Cinemag output transformer and handmade capsule, which is a perfect replica of the K47. This is a single backplate capsule made famous by Georg Neumann & Co.

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