United Studio Technologies UT FET47 Large-diaphragm FET Condenser Microphone

The Authoritative Sound of a Legendary Mic

Heiserman Designed Capsule

For the UT FET47, United Studio Technologies worked with renowned capsule designer Eric Heiserman to develop a fresh take on the classic German K47 capsule design. Eric collaborated with the United team and their capsule manufacturer to develop a new capsule from the ground up. The result is a capsule that sounds open, articulate, and three dimensional — arguably more so than the original. The design process involved the analysis of everything from the sourced Mylar to the screw threads; but after many iterations — and subjective listening tests, the finalized HZ Series capsule design delivered everything the capsule team had hoped for. And then some.

Stringent Quality Control

While many of the HZ Series design elements remain trade secrets, one superior attribute the team can share is the use of dual matched backplates. The HZ Series matching process enables far more consistent and accurate quality from side-to-side and capsule-to-capsule. The HZ Series capsule is manufactured in small batches, with stringent quality control, instrument testing, and subjective listening tests.

Custom Cinemag Transformer

United Studio Technologies auditioned many re-creations of the original FET47 German transformer, but quickly settled on an exceptional design from Cinemag Transformers of California. Their take on this classic, critical component is truly a work of art: a large, beefy transformer made from a striped core of interleaved sets of high nickel and steel laminations and wound to original specs. Cinemag‘s “humbucking” design delivers clean, quiet operation in any and all conditions. While United could have used smaller or less pricey transformer; compromise was never an option. The Cinemag transformer truly makes a huge difference in delivering the authoritative sound of a legend.

United Studio Technologies UT FET47 Large-diaphragm Condenser Microphone 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

Tech Specs

• Microphone Type:FET Condenser
• Polar Pattern:Cardioid
• Diaphragm Size:Dual Diaphragm, 1.33" Brass Backplate
• Frequency Response:20Hz-20kHz
• Max SPL:136 dB SPL
• Output Impedance:160 ohms
• Low Cut Filter:75Hz
• Pads:-10dB
• Color:Milled Brass Body with Nickel Plating
• Connector:XLR
• Power Source:48V phantom power
• Dimensions:8.2" x 2.7"
• Included Accessories:Stand Adapter
• Manufacturer Part Number:UT FET47

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