Microtech Gefell UM 57

The Gefell UM 57 is a premium large-diaphragm tube condenser microphone that combines the legendary sound of the original UM 57 with modern manufacturing precision, featuring the renowned M7 capsule with gold-plated PVC diaphragms, an EF 86 tube amplifier stage, switchable omnidirectional, cardioid and figure-of-eight polar patterns, 20 Hz to 20 kHz frequency response, 17 mV/Pa sensitivity and a dedicated UN 57 power supply with remote polar pattern selection.

A Classic Studio Microphone Reborn

The Gefell UM 57 faithfully recreates one of the most revered tube microphones in recording history while incorporating the reliability and consistency demanded by modern studios. Its sonic signature stems from the original M7 capsule, a design that helped define countless recordings and remains highly regarded for its rich midrange, smooth top end and natural transient response.

Gefell equips the UM 57 with an authentic M7 capsule featuring gold-plated PVC diaphragms. This capsule delivers the characteristic warmth, depth and musicality associated with classic German tube microphones while preserving exceptional detail and realism across vocals, acoustic instruments, orchestral recordings and broadcast applications.

EF 86 Tube Amplifier Circuit

At the heart of the UM 57 lies a carefully selected EF 86 pentode valve chosen specifically for its sonic characteristics. This tube amplifier stage contributes harmonic richness, depth and dimensionality while maintaining excellent clarity and low noise performance. The result is a microphone capable of capturing sources with authority, presence and a distinctive analogue character that remains highly sought after in professional recording environments.

Three Selectable Polar Patterns

The supplied UN 57 power supply allows remote selection of omnidirectional, cardioid and figure-of-eight polar patterns. This flexibility enables the UM 57 to adapt to a wide range of recording techniques and studio applications.

The omnidirectional setting captures a natural and open representation of the recording environment, making it ideal for room recordings, ensembles and orchestral work. Cardioid mode focuses on the sound source while reducing unwanted ambient pickup, making it particularly effective for vocals and close-miked instruments. Figure-of-eight mode captures sound equally from the front and rear while rejecting the sides, providing excellent options for stereo techniques, duets and room ambience capture.

Dedicated UN 57 Power Supply

The UN 57 external power supply delivers all operating voltages required by the microphone while providing convenient remote polar pattern switching. It supports both 115V and 230V mains operation at 50Hz or 60Hz, ensuring compatibility with studios worldwide.

The unit includes a seven-pin microphone connection for power delivery and signal transmission, alongside a standard three-pin XLR output for seamless integration into professional recording systems. An integrated power switch and pattern selector provide straightforward operation.

Premium Construction and Presentation

Gefell finishes both the microphone and power supply in an elegant hammered patina coating that reflects the heritage of the original design. The complete package includes the UM 57 microphone, UN 57 power supply, dedicated connection cable, EA 92 elastic suspension mount and a protective carrying case for secure transport and storage.

Why Choose the Gefell UM 57?

• Capture the unmistakable character of a genuine M7 capsule with authentic gold-plated PVC diaphragms

• Add classic tube warmth and harmonic depth to vocals, acoustic instruments and orchestral recordings

• Switch between three polar patterns remotely to suit different recording techniques without repositioning the microphone

• Benefit from the musical response of a carefully selected EF 86 valve amplifier stage

• Achieve professional studio results with a microphone based on one of the most respected designs in recording history

• Enjoy premium German craftsmanship and meticulous manufacturing standards

• Receive a complete recording solution with power supply, suspension mount, cable and protective case included

• Reissue of the legendary Gefell UM 57 tube condenser microphone
• Original M7 capsule with gold-plated PVC diaphragms
• EF 86 pentode tube amplifier stage
• Switchable omnidirectional polar pattern
• Switchable cardioid polar pattern
• Switchable figure-of-eight polar pattern
• Remote polar pattern selection via UN 57 power supply
• Dedicated external UN 57 power supply
• 20 Hz to 20 kHz frequency response
• 17 mV/Pa sensitivity
• 200 Ohm output impedance
• Large-diaphragm condenser microphone design
• Hammered patina finish on microphone and power supply
• Seven-pin microphone connection
• Three-pin XLR output connection
• Compatible with 115V and 230V mains power
• Supports 50 Hz and 60 Hz power systems
• Includes EA 92 elastic suspension mount
• Includes dedicated microphone cable
• Includes protective carrying case
• Premium German-built construction

This item, like everything we supply, comes with the complete support of our expert team. Our excellent technicians have been specifying, building and supporting studios for over twenty years. If you have any problems with installation, setup or everyday use, they’re never more than a click away, and always happy to help.

You can contact them here.