User Manual for Neumann U 87 Ai Microphone Grace Design Preamp Bundle Click to enlarge the picture
Contents of the user manual for the Neumann U 87 Ai Microphone Grace
- 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 Microphone Grace 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,
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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.
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Product description The Neumann U 87 Ai Microphone/Grace Design Preamp Bundle is a Kit designed for anyone who desires crystal clear vocal and instrument recording. The U 87 Ai condenser microphone is a long established workhorse, suitable for pretty much any type of vocal, and comes with its own shockmount.
The Grace Design m101 is a transformerless, single-channel preamp that delivers remarkably natural, musical and detailed results due to its fast, musical transimpedance amplifier architecture. Along with the included microphone cable, the bundle will happily fit into any studio, voice-over, or broadcast situation. - Neumann U 87 Ai Condenser Microphone (Studio Set, Nickel)
- Mic Shootout 1: Classic Large Diaphragm Condensers
The nickel 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
- Grace Design m101 - Microphone Preamp
- Mic Shootout 1: Classic Large Diaphragm Condensers
The m101 from Grace Design is a single-channel microphone preamplifier that uses the same fast, musical transimpedance amplifier architecture as the model 801 and model 201, but packaged and priced to be within the reach of any recording engineer, musician or studio. The preamp now employs 0.5% precision metal film resistors.An upgrade from the model 101, the unit still employs fully balanced, transformerless circuit topology and has no electrolytic capacitors in the signal path. With incredible bandwidth, headroom and resolution, the unit is remarkably natural, musical and detailed. A universal power supply is internally mounted.The m101 features a ribbon microphone mode which provides additional gain that is usually required by that type of microphone. Pushing the dedicated ribbon switch does three things. Phantom power is locked-out to prevent potential damage to ribbon microphones, the impedance of the microphone input is raised from 8.1kΩ to 20kΩ, and the 48V DC blocking input capacitors are bypassed with sealed gold contact relays.The included instrument DI input is designed to accommodate a wide variety of high impedance input sources, making the unit an excellent choice as a DI box which will flawlessly preserve the sound of any plugged-in instrument while imparting lackluster sounding instrument pickups with clarity and detail. - Fully balanced, transformerless, single-channel microphone preamp with optimized DI instrument input
- Fast, musical transimpedance amplifier architecture
- Updated audio path with 0.5% precision metal film resistors
- Built-in switchable 75Hz, 12dB/8ve high pass filter
- Precision 12-position, gold contact, rotary switch gain control
- 10dB output trim controls for fine level adjustment
- Switchable 48V phantom power
- Ribbon microphone mode with an optimized signal path
- Input impedance, and 48V lockout
- No electrolytic capacitors in the signal path
- Enhanced RFI interference suppression
- Sealed gold contact relays for all signal switching
- Minimal internal signal wiring
- Three output connectors: XLR balanced, TRS balanced and 1/4" unbalanced
- Two color, bi-phase LED peak indicator
- Internal, universal power supply
UPC: 823821110105 - Mogami Gold Studio XLR Female to XLR Male Microphone Cable (Black, 15')
- Mic Shootout 1: Classic Large Diaphragm Condensers
The black, 15' Mogami Gold Studio XLR Female to XLR Male Microphone Cable is a high-quality, 4-conductor cable engineered for maximum rejection of RFI and EMI, accurate signal transmission with low noise, and durability. It uses the company's Neglex twisted, double-conductor quad cable with a spiral, bare copper shield, which is effective in maintaining signal integrity, even when used with unbalanced equipment, in professional or home studios suffering from wiring and grounding problems.The cable is terminated with black-body, gold-plated XLR connectors, and features a 0.236" diameter jacket, ideal for applications where a small-diameter quad mic cable is required. Key Features - Studio and broadcast-quality microphone cable wired with Mogami 2534 Neglex twisted quad-conductor cable
- Ideal for home studios suffering from wiring and grounding problems—maintains signal quality when used with unbalanced equipment
- Served (spiral) bare copper shield for long-lasting protection against RFI and EMI
- XLPE (Cross-Linked Polyethylene) conductor insulation
- Terminated with black-body, 3-pin XLR connectors (XLR female to XLR male)
- Gold-plated contacts to prevent corrosion
- 0.236" jacket diameter—for use where a small-diameter quad mic cable is required
- Limited lifetime warranty
UPC: 801813075830 In the Box - U 87 Ai Condenser Microphone (Studio Set, Nickel) zysbrcwd
- U 87 Ai Condenser Microphone (Nickel)
- EA87 - U87 Shock Mount for U87 Microphones (Nickle)
- Wooden Box
- Limited 2-Year Warranty
- Grace Design - m101 - Microphone Preamp
- Mogami - Gold Studio XLR Female to XLR Male Microphone Cable (Black, 15')
Table of Contents
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Technical parameters - Neumann U 87 Ai Condenser Microphone (Studio Set, Nickel)
| | | 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 | | | | Box Dimensions (LxWxH) | 11.339 x 11.0 x 6.299" | - Grace Design m101 - Microphone Preamp
| Number of Channels | Single | | Inputs | 1 x XLR Microphone (rear panel)
1 x 1/4" TRS phone Instrument (front panel) | | Output | 1 x XLR
1 x 1/4" TRS phone
1 x 1/4" TS phone | | Phantom Power | Yes | | Multi Function | No | | Gain Range | 10dB to 65dB, in 5dB steps
Output trim control adds 0dB to +10dB | | Maximum Output Level | +25dBu, 100kΩ load, 0.1% THD | | Frequency Response | Mic Input: 4.5Hz to 390kHz, -3dB @ 40dB gain
Hi-Z Input: 2.5Hz to 195kHz, -3dB @ 20dB gain | | Noise | <-124dB, 600Ω source | | Power Requirements | 100~240VAC | | Dimensions (WxDxH) | 8.5 x 9.0 x 1.7" (216 x 228 x 43mm) | | Weight | 2.4 lbs (1.09 kg) | | Specialties | Peak LED meter | | | | Box Dimensions (LxWxH) | 16.4 x 14.2 x 4.7" | - Mogami Gold Studio XLR Female to XLR Male Microphone Cable (Black, 15')
| Connector 1 | 3-Pin XLR Male | | Connector 2 | 3-Pin XLR Female | | Cable Length | 15' / 4.6 m | | Outer Diameter | 0.236" / 6 mm | | Shielding | Bare Copper Spiral | | Conductor Material | Oxygen-Free Copper (OFC) | | Number of Conductors | 4 | | Wire Gauge | 24 AWG | | Contact Plating | Gold | | Jacket Type | Polyvinyl Chloride (PVC) | | Insulation Type | Polyethylene | | Conductor Capacitance | 29.6 pF/ft at 1 kHz | | | | Box Dimensions (LxWxH) | 9.37 x 7.165 x 0.787" |
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