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Wunder Audio CM7 FET – No Longer Available

Includes wooden microphone box, historic shock-mount, K47 dual-membrane capsule

Product Description

A phantom powered version of the original U47 was released in 1969 known as the U47 FET. The circuit was quite desirable, using transistors creating a very robust sound. The FET mic has since obtained a legendary status being the most preferred mic in obtaining larger-than-life kick and bass tracks as well as thick and full vocals. The U47 FET is now becoming as sought after as the U47.

“The R&D for the CM7 FET relied on studying the original U47 closely,” says Wunder Audio’s Mike Castoro. “Employing the exact replica of the original grille is one of the key aspects of achieving the correct performance. We’ve been BETA testing this mic for a year now and are very happy with the progress and end result.”



  • CM7 FET microphone with K47 dual-membrane capsule
  • Plush oak microphone box
  • Historic shock mount

Product Specifications

Condition New
Package Contents Includes K47 dual membrane capsule, plush oak microphone box, historic shockmount
Length 6.3 in
Diameter 2.48 in
Tube or Solid State Solid State
Transducer Type Condenser
Polar Pattern Cardioid
Number of Microphones Single Microphone
Phantom Required Yes
Impedance Electrical: 200 Ohms
Frequency Range 30 Hz - 20 kHz
Sensitivity -32 dBV/Pa (25 mV)
Max. SPL 143 dB

Product Reviews

5 out of 5 stars.
Review Count (1)

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I saw and listened to this mic on VK's recent mic shootout featuring blues guitarist Kirk Fletcher. I was skeptical at first because Wunder isn't a huge brand name like Neumann, AKG, Telefunken, etc., but I liked what I heard on the shootout and the helpful people at VK sent me one (paid for, of course) to try, and told me to send it back if it's not a fit.

I tested it against my Neumann U87ai, and this mic blew it away on vocals. I'm a baritone vocalist and I need a mic that isn't too cloudy and dull sounding like most dynamics and some LDC's I have tried. This mic fits the bill. If I'm trying to stay high above the mix, I usually air it out with some high end on the tracking eq, but it doesn't need much. The low end is thick and round. I'm definitely reaching for the eq less with this mic, especially on vocals. Since it's a clone of the U47 FET, I'm not surprised that it sounds so good!

By Hevy on April 7, 2016

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How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.