Packing five switchable polar patterns, a wide dynamic range with a smooth frequency response, and a two-position LF roll-off switch, the U 89i is built to handle virtually any studio recording challenge.
A simple rotary switch lets you select any of five directional patterns (omnidirectional, cardioid, figure-8, hypercardioid and wide-angle cardioid) to give you the best option for each recording application that comes your way. Another rotary switch activates a filter that changes the LF response to either below 80 Hz or 160 Hz frequency. This filter suppresses low frequency interference, yet maintains an even frequency response for close-up sound sources. The microphone also features a steep high-pass filter to prevent it from being overloaded by undesired subsonic frequencies.
The U 89i can handle sound pressure levels up to 134 dB without distortion, and its large dual-diaphragm capsule boasts a very smooth frequency response over a wide acceptance angle. All exposed surfaces of the microphone capsule, including the diaphragms, are at ground potential, making them highly immune to electrical and atmospheric interference and contamination through microscopic dust particles. The capsule is elastically mounted to avoid any structure borne noise that could interfere with its operation.
Truly, this is a microphone for the serious studio: a studio that is willing to invest heavily, yet wisely, for a pay-off of pristine sonic performance.
• Variable large diaphragm microphone
• Pressure-gradient transducer with double membrane capsule
• Five directional characteristics: omni, wide angle cardioid, cardioid, hypercardioid, figure-8
• Two-stage roll-off filter
• Switchable 10 dB pre-attenuation
• Wide frequency range
• 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: 1000 ohms
• Equivalent SPL CCIR 468-3: 28 dB
• Equivalent SPL DIN/IEC 651: 17 dB-A
• S/N ratio CCIR 468-3: 66 dB
• S/N ratio DIN/IEC 651: 77 dB
• Maximum SPL for THD 0.5%: 134 dB
• Maximum SPL for THD 0.5% with preattanuation: 140 dB
• Maximum output voltage: 800 mV
• Dynamic range of the microphone amplifier DIN/IEC 651: 117 dB
• Supply voltage: 48 V ± 4 V
• Current consumption: 0.8 mA
• Matching connector: XLR 3F
• Weight: 400 g (14.1 oz)
• Diameter: 46 mm (1.81")
• Length: 185 mm (7.28")
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