Neumann U89I Large Diaphragm FET Microphone With No Accessories Wooden Box
The amplifier accepts sound pressure levels up to 134 dB without distortion. This figure can be increased to 140 dB. An additional rotary switch activates a filter that changes the low frequency response either below 80 Hz or 160 Hz frequency.
ApplicationsThe U 89 i is similar in appearance to the U 87. It is of smaller size, and lighter weight. It features five instead of three directional characteristics and a higher maximum sound pressure level which make this microphone easier adaptable to different applications.
Polar patternsIn addition to the usual directional polar patterns: omnidirectional, cardioid, and figure-8, we have added a hypercardioid and wide-angle cardioid characteristic. When compared to the standard cardioid pattern, the hypercardioid characteristic suppresses sound from the side more efficiently. The wide-angle polar pattern is especially useful to record large sound sources.
|Variable large diaphragm microphone|
|Pressure-gradient transducer with double membrane capsule|
|Five directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure-8|
|Thereby most versatile in all recording situations|
|Two-stage roll-off filter|
|Switchable 6 dB pre-attenuation|
|Extended frequency range in comparison to U 87 Ai|
|Acoustical operating principle||Pressure gradient transducer|
|Directional pattern||Omnidirectional, wide angle, cardioid, hypercardioid, figure-8|
|Frequency range||20 Hz ... 20 kHz|
|Sensitivity at 1 kHz into 1 kohm||8 mV/Pa|
|Rated impedance||150 ohms|
|Rated load impedance||1 kohms|
|Equivalent noise level, CCIR1)||28 dB|
|Equivalent noise level, A-weighted1)||17 dB-A|
|Signal-to-noise ratio, CCIR1) (rel. 94 dB SPL)||66 dB|
|Signal-to-noise ratio, A-weighted1) (rel. 94 dB SPL)||77 dB|
|Maximum SPL for THD 0.5%2)||134 dB|
|Maximum SPL for THD 0.5% with preattenuation2)||140 dB|
|Maximum output voltage||800 mV|
|Supply voltage (P48, IEC 61938)||48 V ± 4 V|
|Current consumption (P48, IEC 61938)||0.8 mA|
For more information, please visit the manufacturer's website.