The Neumann U 87 Ai is an iconic and widely acclaimed studio microphone that has been a staple in the recording industry for over 50 years. It is celebrated for its classic sound, versatility, and time-tested design. It continues to be a preferred choice for recording professionals across various genres and applications.
Key Features
Legendary Status:
Introduced in 1967, the U 87 Ai has become one of the best-known and most frequently used studio microphones worldwide.
Its refined sound and elegant design have made it a standard microphone for speech and vocals.
Versatility in Applications:
Adaptable to a wide range of applications due to its three selectable polar patterns (omnidirectional, cardioid, figure-8).
Commonly used for vocals, speech, acoustic instruments, drum overheads, guitar cabinets, and classical recordings.
Character and Linearity:
Unique combination of linearity and character, providing a versatile and instantly recognizable sound.
On-axis frequency response is remarkably flat, contributing to its studio-quality performance.
Classic Neumann Engineering:
Traditional design with a dual diaphragm condenser capsule, similar to its predecessor, the U 67.
Features a FET circuit with a minimal signal path and a transformer-balanced output for maximum signal integrity and high common mode rejection.
Timeless Aesthetics:
Tapered body and iconic headgrille design have made it a symbol of studio microphones.
Its appearance and sound have contributed to its status as a classic and timeless piece of audio equipment.
Applications in Recording:
Praised as the ultimate vocal microphone with natural sound and unique midrange presence.
Commonly used for speech applications, voiceovers, dubbing, audio books, and classical recordings.
Switchable Features:
Switchable low-cut filter to reduce unwanted low-frequency noise.
Switchable pad for handling high sound pressure levels.
Balanced Frequency Response:
Delivers a balanced frequency response with a solid bass response and excellent midrange detail.
Low Self-Noise:
Very low self-noise, ensuring clean and transparent recordings.
PRODUCT SPECIFICATIONS
Acoustical operating principle
Pressure gradient transducer
Directional Pattern
Omnidirectional
Cardioid
Figure-8
Frequency Range
20 Hz - 20 kHz
Sensitivity at 1 kHz into 1 kohm
20/28/22 mV/Pa ± 1 dB (Omni/cardioid/8)
Rated Impedance
200 ohms
Rated load impedance
1 kohms
Equivalent noise level, CCIR¹⁾
26/23/25 dB (Omni/cardioid/8)
Equivalent noise level, A-weighted¹⁾
15/12/14 dB-A (Omni/cardioid/8)
Maximum SPL for THD 0.5%²⁾
117 dB (cardioid)
Maximum SPL for THD 0.5% with preattenuation²⁾
127 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾
68/71/69 dB (Omni/cardioid/8)
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾
79/82/80 dB (Omni/cardioid/8)
Maximum output voltage
-6 dBu
Supply voltage (P48, IEC 61938)
48 V ± 4 V
Current consumption (P48, IEC 61938)
0.8 mA
Matching connector
XLR 3 F
Weight
500 g = 1.1 lbs
Diameter
56 mm = 2.2 in
Length
200 mm = 7.9 in
1) according to IEC 60268-1; CCIR-weighting according to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
3) measured as equivalent el. input signal
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