It’s a labor of love. The UT FET47 represents several years of R&D, blood, sweat, and tears — all to capture the essence of one of the most beloved and classic solid state condenser microphones, and recreate it for the modern recordist.

The sonic qualities you’ve been chasing have arrived — at an accessible price, with uncompromised quality.

The UT FET47 features a custom Cinemag transformer, a custom Heiserman designed HZ-Series capsule, vintage polystyrene capacitors, and NOS (new old stock) FETs.

Custom parts. Vintage new-old-stock parts. Mix that together with each microphone being built in the USA by actual recording engineers, and you have the UT FET47.

Featuring Heiserman Designed Capsules

We worked with acclaimed capsule designer and manufacturer Eric Heiserman to develop a fresh take on the classic K47 German capsule design. Eric worked with the United team and our capsule manufacturer to develop a new capsule from the ground up, that we are very pleased with. The capsule is open, articulate, and very three dimensional. This process required the analysis of everything from the sourced Mylar to the thread types of screws; but after many months and many iterations, we finally achieved what we had hoped for in the HZ-Series capsules.

While many of the HZ-Series design secrets will remain so, one superior attribute we can reveal is the use of dual, matched backplates. With the HZ-Series matching process, a far more accurate and consistent quality from side to side and capsule to capsule is achieved. 

The HZ-Series capsule is still manufactured only a few at a time, and stringently listened to and tested.

Custom Cinemag Transformers

We auditioned many recreations of the original German transformer; but quickly settled on an exceptional offering from Cinemag Transformers in California. Their answer to the classic part is truly a piece of art; a large, hefty transformer made from a ‘striped core’ of interleaved sets of high nickel and steel laminations, and wound to the specs of the original. It‘s humbucking design delivers clean, quiet operation.

While we could have used smaller or less expensive transformer; we simply refused to compromise. We believe you’ll be glad we didn’t. This Cinemag transformer was truly everything we could hope for. 

Key Features:

• Faithful reproduction of the legendary vintage German studio microphone
• Heiserman designed HZ Series K47 capsule
• Custom wound, large, striped-core, American made, Cinemag transformer
• Vintage polystyrene capacitors, and NOS (new old stock) FETs
• No electrolytic capacitors, over-spec’d components - it will last a lifetime
• Absolute workhorse; a desert-island microphone for professional studios and voiceover work
• Clean, clear, articulate, open sound; low noise and high headroom and dynamic range
• Capsule: H Series 34mm all-brass dual backplate K47
• Diaphragm: Dual-diaphragm, 6 micron, 24K gold-sputtered Mylar (PET film)
• Power Supply Ground: +48v Phantom Power (via XLR)
• Frequency response: 20Hz–20kHz
• Polar Pattern: Cardioid
• SPL: 136dB (145dB with pad) @ .5% THD
• Output Impedance: 160 ohms
• Amplifer Type: Field Effect Transistor
• Self noise Output: <10dB (no pad, no HPF)
• Body: Nickel electroplated, solid milled brass
• Highpass filter: 75Hz
• Pad: 10dB
• Connector: 24k gold-plated XLR
• Mount: Self-contained stand swivel mount adapter
• Quality crafted in the USA

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