Neumann U87 Ai is probably the most well-known and frequently used studio microphone worldwide. Its fine and refined sound is as iconic as its elegant exterior design. The U87 Ai is the standard microphone for vocals. The three switchable polar patterns, the pad switch, and the built-in low-cut filter make it adaptable to a wide range of applications.
Technically, the U87 Ai has a traditional design whose timeless formula has remained unchanged for decades. The U87 Ai uses the same dual diaphragm condenser capsule design as its predecessor, the U67 from the early 1960s. The amplification circuits are also based on the same design principles as the U67 tube, but the U87 Ai features a FET circuit with a minimal signal path and a balanced transformer output, ensuring maximum signal integrity.
The result is a studio microphone with unmatched clarity. Its natural sound and unique presence in the mid frequencies make the U87 Ai the ultimate vocal microphone, acclaimed by both singers and engineers, and the primary choice for vocal applications, voice over, dubbing, and audio books. Due to its balanced response in each of the three directional patterns, the U87 Ai is also a versatile microphone for anything from acoustic guitar to drum overheads. Its solid low-frequency response and excellent detail in the mid frequencies make it often seen in front of bass cabinets and guitars. For classical recordings, the U87 Ai is frequently used as a spot microphone for soloists, e.g., cello. A stereo pair of U 87 Ai is the preferred choice of many engineers for recording pianos.
condenser type
switchable polar patterns:
cardioid
omnidirectional
figure-8
frequency range: 20 Hz - 20 kHz
sensitivity at 1 kHz / 1 kOhm: 20/28/22 mV/Pa ± 1 dB (Omni/cardioid/8)
impedance: 200 Ohms
maximum sound pressure level:
117 dB cardioid
127 dB with pad
signal-to-noise ratio, A-weighted (ref. 94 dB SPL): 79/82/80 dB (Omni/cardioid/8)
