Microtech Gefell UM930 Full Bronze
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A large diaphragm condenser designed for studio and broadcast versatility
Designed to meet the demands of sound engineers in studio and broadcast environments, the UM 930 follows the tradition of versatile high-end microphones. Its dual capsule and precision polar pattern selection make it a reliable tool to cover a wide range of applications with a consistent sonic signature.
Who is it for and what are its uses?
Ideal for singers, voice-over actors, and demanding podcasters, it also excels in instrument recording: guitars, keyboards, percussion, winds, and strings. In both broadcast and music recording, its polar patterns allow adaptation to the room, control of bleed, and optimization of the direct-to-ambient ratio.
Key features and innovations
Multiple polar patterns, silent switching
Five polar patterns provide the flexibility needed to shape the sound at the source. Maintenance-free Reed relays ensure reliable switching, while a function mutes the signal during pattern changes to avoid any unwanted noise. The LED under the grille clearly indicates ready-to-use status.
Anti-resonance mechanical design
The robust construction limits body resonances and mechanical vibrations. The integrated elastic suspension adjusts +/-135 degrees for precise positioning, and interchangeable colored rings (green, red, blue) facilitate identification on set.
"UM 930 Twin" version for comparison and remixing
The UM 930 Twin variant combines two microphones: one with a fixed cardioid and the other offering five simultaneous polar patterns. Signals are available via a 5-pin XLR, with the option to use an adapter to two 3-pin XLRs. This architecture allows real-time comparison to a cardioid reference and adjustment of the polar pattern during mixing.
Technical specifications
| Frequency response | 40 Hz - 18 kHz | Capsule | Large Diaphragm |
| Category | studio microphone | Connection | XLR |
| Directivity | omnidirectional | Color | Grey |
| Polar patterns | omnidirectional, wide cardioid, cardioid, hypercardioid, figure-8 | Dynamic range | 135 dB |
| Acoustic operating principle | pressure gradient transducer | Current consumption (P 48, DIN 45596, IEC 268-15) | 4.5 mA |
| Dual capsule | large diaphragm | UM930 output connector | 3-pin XLR with gold-plated contacts |
| Sensitivity at 1 kHz (cardioid) | 20 mV/Pa | UM930 Twin output connector | 5-pin XLR with gold-plated contacts |
| Equivalent noise level (cardioid) | CCIR 468-4 13 dB, DIN EN 60 651 7 dB - A-weighted measurement | Finishes | satin nickel or dark bronze |
| Signal-to-noise ratio (with 1 Pa at 1 kHz) | CCIR weighted 81 dB, A-weighted 87 dB | Weight | 930 g |
| Maximum SPL for 0.5% THD | 142 dB | Dimensions (L x ?) | 158 mm x 65 mm |
Questions frequently asked
What polar patterns does the Microtech Gefell UM930 Full Bronze offer?
Five selectable polar patterns allow adapting the pickup to the source and room acoustics. Reed relay switching momentarily cuts the signal to avoid unwanted noise.
Is the UM930 suitable for recording voice-over or podcast?
Its large dual-diaphragm capsule is specifically designed for voice-over and podcast. The cardioid sensitivity reaches 20 mV/Pa at 1 kHz, with an equivalent noise level of 7 dB A-weighted.
What maximum sound pressure level can this studio microphone handle?
The maximum SPL stated is 142 dB with a total harmonic distortion of 0.5%.
What power supply and connectivity does it use?
P48 phantom power is specified with a current consumption of 4.5 mA. The output uses an XLR connector.
Is the microphone supplied with an adjustable suspension?
An integrated shock mount allows positioning adjustment of +/-135°. Interchangeable green, red, and blue rings facilitate its identification on a setup.
