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Studio Microphone
The U 87 Ai switchable microphone is the successor model to the U 87 i, probably the best known and most widely used microphone in the fet 80 series. The changes affect the increased output voltage and the reduced equivalent noise level. Both measures contribute to a remarkable improvement in recording quality. The microphone is used as the main microphone in studios for orchestral recordings and as a spot microphone for individual instruments. The U 87 Ai and its many features are used for broadcasting big bands and for recording instrumental and vocal soloists, as well as for such difficult tasks as producing a radio play.
Three switches on the capsule head can be used to set the three directional characteristics omnidirectional, cardioid and bi-directional, a low-frequency roll-off and a 10 dB pre-attenuation.
- Colour: Black
- Polar pattern: omnidirectional, cardioid and figure-8
- Switchable 10 dB attenuation
- Acoustical operating principle: pressure gradient transducer
- Frequency range: 20 - 20000 Hz
- Field operating transmission factor: 22/28/20 mV/Pa
- Nominal impedance: 200 Ohm
- Equivalent noise level DIN 45 405 dB 26/23/25
- Signal-to-noise ratio referred to 1 Pa CCIR 68/71/69dB
- Max. SPL (sound pressure level) for 0.5% harmonic distortion 117 dB (with preattenuation 127dB)
- Dynamic range of the microphone amplifier: 115 dB
- Power consumption: 0.8 mA
- Weight: 500 g
- Diameter: 56 mm, length: 200 mm
- Universally applicable: vocals, speakers, overhead, wind instruments
- Note: no tripod mount or elastic suspension included (optional accessories available under Art. 189268 and 218556)
