Sennheiser - MD421 U-4 Dynamic microphone

Designed in the late 1970s by engineers P.F. Warning and J.F. Fischer, the Sennheiser MD 421 is a cardioid dynamic microphone that is regarded as a standard in concerts and recording studios. In 2010 the MD 421 was inducted into the TEC Awards Hall of Fame. It features a large-diaphragm capsule and a frequency response of 30–17,000 Hz ±3 dB, surpassing the “HiFi-DIN45500” standard, and is equipped with a compensating coil that cancels low-frequency interference. The MD 421U, thanks to its nearly linear response on low frequencies up to 1 kHz, is the first choice on drums toms and percussion, and also excels for amplifiers (guitar and bass), wind instruments, brass, and radio voice. Not to be confused with the cheaper “MD421 II,” the version presented here (U4) is the second series produced in the late 1970s, and is characterized by its black color with a silver balanced XLR connector and a five-position inductive high-pass filter. To be appreciated here is the rare and valuable serial sequence for three units of the original batch, which consists of: - 4 microphones “MD421-U4” (series: 24850, 24851, 24852, 27107) - 4 microphone clips “MZA” (one repaired, one non-original) - 3 plastic boxes (foam replaced) - 3 cardboard cases (repaired) - (documents) 3 individual calibrations, 2 user manuals, 3 warranties. The items have always been used in a professional recording studio. The visible aesthetic conditions due to use and time do not compromise the sound quality of these microphones, which are normally functional and checked before shipment. The shipment will be made by international courier or Poste Italiane with tracking, at a cost of €30.00 for EU countries and €55.00 for other continental countries.