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Wunder Audio CM7

Remake of the legendary U47 tube microphone, complete with M7 capsule and all accessories
MFR# CM7
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Product Description

The Wunder Audio CM7 Tube Microphone comes with the original large-style U47 transformer that was used in the earlier U47's, including the legendary "Large Badge" U47. These first couple of hundred U47's are very sought after sonically. The CM7 transformer's larger size and high nickel content achieves better low end rolling off at 20 Hz, identical to the original U47 design, instead of 40 Hz. The smaller 40 Hz transformer that was used in later versions of the U47 was made with the 40 Hz roll-off as a requirement for the IRT (German Broadcasting Network). In modern day recording this capability to capture the low end frequencies is essential.

Package includes:

  • CM7
  • Plush oak box
  • Historical shock mount
  • Historical power supply
  • Original large Tuchel connected mic cable
  • Tweed carrying case
  • Comes standard with the M7 capsule

Product Specifications

Condition New
Package Contents Includes power supply, EF14 tube, connection cable, shock mount, quarter-sawn oak case
Length 9.45 in
Diameter 2.48 in
Tube or Solid State Tube
Transducer Type Condenser
Polar Pattern Cardioid, Omni-Directional
Number of Microphones Single Microphone
Phantom Required No
Impedance Electrical: 200 Ohms
Frequency Range 20 Hz - 18 kHz
Sensitivity Cardioid: -32 dBV/Pa (25 mV) / Omni: -37.1 dBV/Pa (14 mV)
Max. SPL 128 dB

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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.
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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.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
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Noa L.
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My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
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From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
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