Wunder Audio CM7-FET S Condenser Microphone

The Wunder Audio CM7-FET Suprema is a phantom powered version of the original U47. The original goal with a phantom powered mic was to bypass the need for a tube PSU. One shortcoming of the U47 FET was that the design technology of the 1960’s FET transistor was in its infancy and the end result was not always desirable.

The Wunder Audio CM7 FET Suprema has improved this design with a modern upgrade that employs an ultra-low noise single n-channel transistor with JFET technology coupled with a Neve 1073 style mic pre-transformer. The results are stunning and the performance of this mic greatly surpasses the original, yielding better low-lows and highs. This a workhorse studio mic for all sources, especially vocals, making it reminiscent of a 1970’s era U87!

Grille

Employing the exact replica of the original grille is one of the key aspects of achieving the correct performance of this mic.

Our Wunder Audio CM7FET S Grille is true to vintage with three gauges of grill mesh at the head grille: an outer large mesh, an inner medium mesh, and a fine mesh that is sandwiched in between.

The Wunder Audio Suprema Grille has acoustic interplay with the capsule, having the electronic properties of a Faraday cage. This proper vintage mesh gauge is not the readily available metric gauge and is vastly important for the legendary sound of a U47.

Capsule

The Wunder Audio CM7 FET Suprema K47 capsule includes a one-piece back plate dual Membrane Capsule. The diaphragms are tuned individually and then matched for an equivalent response.

There were several different versions of the original Neumann K47 capsule. The earlier versions, circa 1960-66, had either brass or fiber diaphragm rings and the later versions, 1966 onwards, were made with white plastic diaphragm rings, which actually were better at isolating the diaphragm from the backplate ground. We took this approach one step further with a modern upgrade by utilizing a white porcelain ringed K47 in our capsule. Our porcelain has low permeability and elasticity, considerable strength, hardness, resonance, and a high resistance to chemical attack and thermal shock, improving on the white plastic rings used on the original K47; which were prone to discoloring, becoming soaked with impurities over the years and affected its electrical resistance thus creating noise.

Capacitor

We’ve optimized our passive components to achieve a true audiophile performance. While high-fidelity equipment is usually referred to at the end of the chain in recording, we feel that it is equally important all the way through; to be able to listen to the best possible recording, you must be able to record that sound with minimal amounts of noise and distortion and an accurate frequency.

We’ve enhanced to our true to vintage microphones by changing the value of the capacitors resulting in a lower corner frequency for a modern-vintage sound where the spectrum opens up, adding emphasis to the sound staging and creates a greater sense of air and transparency, without the impression of a diminished mid and lower-end response. The outcome is a less grainy and a much more fluid sound. The focus is tighter and sharper.

Box and Yoke Mount

Your Wunder Audio CM7 FET S is nestled in velvet and softly secured in place in a foam-lined oak-wooden box that is clasped and hinged. This beautiful oak box is also sold separately. Your CM7 FET S yoke mount is an improved one-piece design for durability.

Package includes:

CM7 FET S Microphone, K47 Dual Membrane Capsule, Plush Oak Microphone Box, Historic Shock-mount, and 1-year warranty.

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