- cardioid | omni
- 35Hz - 18kHz
- 25mV/Pa | 18mV/Pa (sensivity at 1kHz)
- 50/200 Ohm
- min 500/2000 Ohm (rated load impedance)
- A choice of EF12, EF14, UF14, VF14 valves
- A choice of F7, F47/49 or Thiersch PVC M7
Actually this mic is an exact replica of the U47. It is equipped with F7 capsule – our exact replica of M7 capsule, our replica of BV8 transformer and TELEFUNKEN EF14, UF14 or VF14 tubes. In fact, they are the same tubes with different heating. Especially we focus on EF12 tube as we consider its sound character closest to original. Of course, the price depends on the type of tube. Those of you who have knowledge of prices know that the price of a good VF14 tube can reach 1,500€, so it is obvious that this mic is not a cheap thing. But this mic is possible to use for almost everything and always sounds perfect.
"Heisann! Er på Ocean Sound Recordings og spiller inn neste album. Tok med Flea47'en jeg kjøpte av deg, så den har fått kjørt seg i en skikkelig session for første gang. Den er rett og slett helt utrolig bra! Ord blir fattig! Bruker en original u47 på vox, men flea'en gjør kassegitar, rom på trommer (i et MS-oppsett midt i rommet) og alt av blås. Fantastisk mikrofon!!! Ville bare si fra alt godt. Kjetil."
Of course, there are a few exceptions, but only a fool would position this mic 5 cm from the kick-drumhead of a heavy metal drummer. The body is duraluminium and is nickel plated . The grille is available in two versions: glossy chrome or matt nickel. The whole set comprises the mic in wooden box, cable, shockmount and power supply. You can choose from two PSUs, modern one or the copy of the vintage style PSU (see the gallery). The other option of this microphone is: FLEA Magnum – fitted with F47/49 capsule. This mic holds opened top end and more sensitivity. You can achieve great results of record if you use Magnum for ambient miking.
Info om den originale U47:
The original U 47, invented in 1947, was the first switchable pattern condenser microphone. It has become the most revered vocal microphone in history, and inspired dozens of attempts to recreate its sound.
The U 47 could produce either a Cardioid or Omnidirectional pickup pattern. The pattern switch was located on the microphone body, and worked by disabling the polarization voltage to the rear diaphragm.
(The U 48, introduced around 1957, was a U 47 that provided either Cardioid or Figure-of-8 patterns. The only difference between omni and figure-of-8 patterns is the polarity of the rear capsule.)
The U-47 did not maintain equal output levels across patterns. This is a characteristic that Neumann engineers sought to improve in later mics, such as the M 49. The U-47’s output was 5dB hotter in Cardioid mode than in Omni, because the capsule’s rear diaphragm was simply disconnected in Cardioid mode, avoiding the capacitance losses of having it in the circuit.
The original U47 employed a Telefunken VF14 tube, which would become hard to find within a few years, leading to changes to the U47 design as well as the introduction of the U47fet, a FET condenser intended to sound the same as its tube-amplified sibling.
Early U47 (and U48) mics contained Neumann’s M7 capsule, in which the brass backplate was covered with a thin PVC diaphragm. PVC ages poorly, and as early as 1958 the Neumann factory was using the M7’s successor, a capsule known as the K47/49, which used a metallized polyester diaphragm.
The K47 capsule used a single, shared backplate, which caused tensioning challenges, in that both diaphragms would have to be tuned identically to produce balanced Figure-of-8 or Omni patterns.
In the original German-language Neumann documentation for the U47 and similar mics, the term “Niere” — literally “kidney” — is used to denote the Cardioid pattern. The term “Kugel,” which translates to “ball,” indicates Omnidirectional.