Joemeek JM47 User Manual

What is a JM47?

Just before World War 2, a small company in Germany de-
veloped a technology for the manufacture of very high qual-
ity microphones using the principle that a charged capacitor
changes the voltage across its plates when one of the plates
is moved with respect to the other. The German company
developed a shape of capacitor and the gold membrane that
forms the 'moving' plate.
This development reached a high level of sophistication. So
much so, that to this day the finest studio microphones follow
the design of the original Neumann Company. Fortunately
for some other manufacturers in the world, the technology of
the original company in East Germany became a part of the
technology sharing policy of the Communist world, and it was
taken up by some specialist manufacturers in the Far East.
Today, fine microphones are still manufactured by the original
company, and by the sharing of technology, we now have a
number of products from China that are actually legitimate
high quality microphones in their own right. For many years,
Joemeek has been making occasional "one off"' capacitor mi-
crophones with varying degrees of success.
Attempts to manufacture the microphone economically while
retaining the superior performance were not completely suc-
cessful until Joemeek investigated some of the Far East prod-
ucts. The JM47 is the result of co-operation with a Far East
manufacturer and a sustained program of testing in the new
Joemeek studio, comparing the production microphone with
the best hand built originals, and with some competing prod-
ucts. The JM47 contains all the classic design elements and
the sound of the finest microphones in the world.

Origins and Manufacture

The Joemeek JM47 is manufactured under the supervision of
PMI Audio Group. All mics are tested for quality control.
The JM47 meets all requirements for electronic equipment in
all countries of export.
PMI Audio Group
USA: 23775 Madison Street
Torrance, California 90505
toll free: 877-563-6335 fax: 310-373-4714
email: info@joemeek.com
UK: P.O. Box 358
Torquay, Devon TQ2 5XS
tel: +44 (0) 180 3215111
email: eusales@joemeek.com
Joemeek® is a registered trademark of PMI Audio Group.
©2003 PMI Audio Group. All rights reserved.
JM47
Ultimate professional quality
Large diameter true
capacitor gold capsule
Ultra low-noise FET Preamplifier
Transformer output
48 volt phantom powered
Elastic shock mount
(sold separately)
Joemeek Users Guide