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User Manual for Neumann U 87 Ai Condenser Microphone Click to enlarge the picture
Contents of the user manual for the Neumann U 87 Ai Condenser Microphone
- Product category: Large Diaphragm Condenser Neumann
- Brand: Neumann
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Neumann Large Diaphragm Condenser
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User manual for the Neumann U 87 Ai Condenser Microphone contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Neumann product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Neumann user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Neumann product will considerably shorten its lifespan!
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Product description - Mic Shootout 1: Classic Large Diaphragm Condensers
The black U 87 Ai Condenser Microphone from Neumann is a large dual-diaphragm condenser microphone. It features three directional patterns, including omnidirectional, cardioid and figure-8. These are selectable with a switch below the head grille and the window above this switch shows the symbol of the selected characteristic. A 10 dB attenuation switch is located on the rear. It enables the microphone to handle sound pressure levels up to 127 dB without distortion. The low frequency response can be reduced to compensate for proximity effect.
The U 87 Ai is used as a main microphone for orchestra recordings, as a spot microphone for single instruments, and extensively as a vocal microphone for all types of music and speech.
The U 87 Ai is addressed from the front. The frequency response of the cardioid and figure-8 directional characteristics are very flat for frontal sound incidence, even in the upper frequency range. The microphone can be used very close to a sound source without the sound becoming unnaturally harsh. By means of a high-pass filter, interference through subsonic and low frequencies are reduced.
The circuitry increases operational headroom of the U 87 Ai by supplying the bias voltages for the capsule through a reduced resistance. The result is a higher sensitivity of 10 dB for identical sound pressure levels, and an improved S/N ratio of 3 dB.
A switch located at the rear attenuates the sensitivity by 10 dB. When this switch is activated, the microphone accepts sound pressure levels up to 127 dB (equivalent to a sound pressure of 45 Pa) without distortion.
An additional switch at the rear allows to change the microphone's cutoff frequency. This reduces low frequency interference directly at the input of the microphone amplifier. This setting also compensates for the unavoidable bass boost that occurs with all pressure gradient transducers when they are used at close distance (proximity effect).
The cardioid characteristic maintains a smooth frequency response at a distance of 30 to 40 cm, and the figure-8 characteristic at a distance of 15 to 20 cm. - Variable large diaphragm microphone
- Pressure-gradient transducer with double membrane capsule
- Omnidirectional, cardioid, and figure-8 characteristics
- Switchable low frequency roll-off
- Switchable 10 dB pre-attenuation
- Great as a main or as a support microphone
UPC: 615104085060 In the Box Neumann U 87 Ai Condenser Microphone (Stereo Set, Black) 2 x U 87 Ai Condenser Microphone (Black) 2 x EA87 - U87 Shock Mount for U87 Microphones (Black) 2 x Dust Covers Aluminum Case Limited 2-Year Warranty Table of Contents
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Technical parametersNeumann U87 Specs | | | Operating Principle | Pressure Gradient | | Transducer | Condenser | | Polar Pattern | Cardioid, Figure-8, Omnidirectional | | Pattern Selection | Switched | | Frequency Range | 20 Hz to 20 kHz | | Signal to Noise Ratio | 71 dB CCIR
69 dB CCIR
68 dB CCIR
82 dB A-Weighted
80 dB A-Weighted
79 dB A-Weighted | | Equivalent Noise Level | 23 dB CCIR
25 dB CCIR
26 dB CCIR
12 dB A-Weighted
14 dB A-Weighted
15 dB A-Weighted | | Maximum SPL | 117 dB SPL | | Pad | -10 dB | | THD | 0.5% | | Impedance | 200 Ohms | | Load Impedance | 1000 Ohms | | Sensitivity | 28 mV/Pa at 1 kHz into 1 kOhms
22 mV/Pa at 1 kHz into 1 kOhms
20 mV/Pa at 1 kHz into 1 kOhms | | | | Output Connectors | 1 x 3-Pin XLR | | Operating Current Consumption | 0.8 µA | | Operating Voltage | 48 V ± 4 V | | Length | 7.87" / 200 mm | | Diameter | 2.20" / 56 mm | | Weight | 1.10 lb / 500 g | | | | Package Weight | 10.8 lb | | Box Dimensions (LxWxH) | 16.221 x 14.016 x 6.614" |
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