The Gefell UM 930 twin is a dual condenser microphone with switchable polar pattern. High output level and exceptionally low noise.
The Gefell UM 930 twin switchable pattern studio condenser microphone combines modern large diaphragm capsule technology with the latest in semiconductor circuit topology. The optimized dual-capsule assembly opens up new applications in recording techniques. In addition to conventional switched patterns, two different directional patterns can be selected at the same time.
The Gefell UM 930 twin is specifically designed to meet the needs of professional and semi-professional users who demand the highest performance. This microphone is ideally suited for universal miking applications in broadcast and sound studios. Applications include vocalists, announcers, dialog pickup and as spot microphones for recording guitars, keyboards, percussion, wind and string instruments.
The microphone is side addressed. The front shows the model type and the polar pattern inscription.
Large diaphragm dual-capsuleSwitchable: omni, wide cardioid, cardioid, hyper cardioid, figure 8Exceptional dynamic rangeEquivalent noise level 7 dBATransformerless outputElastic capsule suspensionContinuous control of variable polar pattern from the mixing console or PC using separate signal outputsCardioid frontCardioid rear selected by switch ringClear indication of selected characteristicsOne microphone records two separate polar patterns simultaneously
Polar patterns reference: cardioid front
Switchable pattern: cardioid, fig.-8, hypercardioid, wide cardioid, omni
Acoustic operating principle Pressure gradient transducer
Dual-capsule large diaphragm
Frequency range 40 . . . 18000 Hz
Sensitivity at 1 kHz (cardioid) 20 mV/Pa
Output impedance 100
Noise level (cardioid):
CCIR 468 - 4: 13 dBDIN EN 60651: 7 dB - A
Signal-to-noise ratio (re 1 Pa at 1 kHz):
CCIR - weighted: 81 dBA - weighted: 87 dB
Max. SPL for K 0,5 % THD 142 dB
Dynamic range 135 dB
Current consumtion (P 48, DIN 45596, IEC 268-15) 4,5 mA
Output connector 5-pin XLR connector, gold-plated contacts
Weight 930 g
Dimensions ( L x Ø ) 158 mm x 65 mm
Finish satin nickel, dark bronze