Neumann U89 I (NICKEL) / Neumann U89 I MT

Neumann U89 I (NICKEL) / Neumann U89 I MT (MATT BLACK) Multi-pattern mic with K 89 capsule, five patterns, pad, filter, in woodbox

The Neumann U89 I comes in NICKEL color while the Neumann U89 I MT comes in Matt Black. It is a studio microphone capable to be use for multiple applications. The head grille is intended for protecting a dual-diaphragm capsule and a rotary switch below the head grille is possible to select from five different polar patterns.

The amplifier is designed accepting sound pressure levels up to 134 dB without distortion. This figure is capable to be increased to 140 dB. An additional rotary switch is made for activating a filter that is changing the low frequency response either below 80 Hz or 160 Hz frequency.

This microphone comes with an omnidirectional, cardioid, figure-8, hypercardioid, and wide-angle cardioid characteristics. 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 for recording a large sound sources.

The microphone is addressed from the front. The large diaphragm capsule comes with a very smooth frequency response for all polar patterns over a wide acceptance angle. The frequency response curves are flat up to 10 kHz within a pickup angle of ± 100°. The U 89 i comes equipped with a very even diffuse-field response for all polar patterns. This is important in a reverberant environment by the time of more reflections arrive at the microphone capsule. The acoustic information is not affected in its tonal quality by the time it is recorded by the microphone. This characteristic is achieved without resorting to corrective resonance effects. The capsule is elastically mounted for avoiding any structure borne noise that could interfere with its operation.

The amplifier is capable to handle the sound pressure levels up to 134 dB without distortion. With a self noise level of 17 dB (A-weighted) the total dynamic range is 117 dB. Maximum sound pressure level is 140 dB when the - 6 dB rotary switch is in the ON position.

A low frequency roll-off at 80 Hz or 160 Hz is capable to be activated with another rotary switch below the head grille. This filter is supressing the low frequency interference, yet is maintaining an even frequency response for close-up sound sources. A steep high-pass filter in the LIN position is designed for preventing the output transformer of the microphone from being overloaded due to undesired subsonic frequencies.

All exposed surfaces of the microphone capsule, including the diaphragms, are at ground potential. This makes them highly immune to electrical and atmospheric interference and contamination through microscopic dust particles.

• Variable large diaphragm microphone
• Pressure-gradient transducer with double membrane capsule
• Omnidirectional, wide-angle cardioid, cardioid, hypercardioid, and figure-8 characteristics
• Two-stage roll-off filter
• Switchable 6 dB pre-attenuation