Die U47 Zeitmaschine.... (the U47 time machine)
Can an U47-remake be as good
as the original?
My name
is Gunter Wagner and I am specialised in tube microphone technology since more than 40
years.
My special field is the Neumann
U47. With a background in music, electronics, sound
technology and sound engineering I fell in love with the
magic sound and the technical design of the U47
in the mid seventies when I worked as a sound engineer and
sound technician in Germany.
The more I learned about tube microphones in
the following years, the more I respected the U47 design.
Considering that it was designed 1948/49, shortly after
WW2 - at a time when it was hard to find sources for
unusual parts and materials in Germany - its historical
impact on the recording industry from the early 50's until
today is undisputed and truly remarkable.
Other microphones at that time were often electronically
more complex, but mechanically very... well,.. simple.
This often made them unreliable and sometimes even
sounding a bit 'tinny'. The U47 is completely the other
way around: Mechanically super solid and complex in
important mechanical details (like its unique flexible
tube suspension, the capsule interconnection or the
sophisticated triple layer mesh in the grille), the U47's
circuit design has a brilliant simplicity.
There was no computer
simulation in 1948, and test equipment for acoustical
measurements and research was simple and vague, at least
for today's standards. Nevertheless the U47 turned into a
milestones
in German recording technology and became
one of the world's best and most sought-after microphones.
But as we know, even the most ingenious design does not
guarantee a world-class sound, so here is the question:
Did they know 1948 what they were doing or was the U47
just a "lucky shot" ? We will never find out...
Keeping the old Neumann
U47 alive...
When
Neumann more and more ran out of original U47 parts in
the mid 80's, we started re-manufacturing U47 parts to make sure that we could
continue professional service and restoration the old
classic U47. From 1989
we re-made most key parts of the old U47 and supplied
authentic spareparts to many microphone technicians and
manufacturers around the world. (See http://wagner-microphones.com/U47Parts/U47clone-.htm ).
1998 I built the first completely new U47-reproduction as
a special order for one of my international clients.
The response was overwhelming. Finally
it was possible - by matching capsule, tube and output
transformer in combination with a completely
authentic U47 body-mechanics - to achieve 100% of the look,
feel and the sonic quality of the classic U47. Not
just a copy of an old U47 with all its problems, but making
U47 to the quality and sound when
they were new, 60 years ago!
Because
the U47w is made from U47
original parts, original materials and 100% authentic
reproduced parts, basically each item - from the mechanics,
the body and the head to the transformer and the capsule -
is directly interchangeable, compatible and fully authentic to the old Neumann
part in an old U47. So if you take the headgrille or a capsule
or even the output connector, it directly
fits to an old Neumann U47 because it does not just
look as the original, it
is always a completely authentic replacement part
for the Neumann U47.
Over 19 years we handmade 340
U47w for clients around the globe who find it amazing that they can now use a true U47
without the limitations and unpredictability of a 70 year old mic. Output gain, frequency response,
noise, distortion and the famous character
- all specs are identical to the vintage
U47.
Have a look at the images and read some background information:
Original versus "Remake"
The Capsule
The Transformer
The Tube
The
Power Supply
Made from U47 Spare Parts
What existing U47w users from around
the world say about it

(click
for next image)

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