Neumann U 89 i

Neumann U 89 i

The U 89i is a studio microphone for universal applications. The headgrille protects a dual-diaphragm capsule. A rotary switch below the headgrille selects from five different polar patterns. Therefore the microphone can be adapted easily to large sound sources, and those that are spread wide apart, or to sound sources to be recorded at a greater distance.

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.

Features:
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

Technical Specifications:
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
Dynamic range of the microphone amplifier (A-weighted)     117 dB
Supply voltage (P48, IEC 61938)     48 V ± 4 V
Current consumption (P48, IEC 61938)     0.8 mA
Matching connector     XLR3F
Weight     400 g
Diameter     46 mm
Length     185 mm