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The Neumann U 87 Ai Microphone/Grace Design Preamp Bundle is 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.
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.
Neglex type Quad Cables have been developed for the highest quality recording applications where maximum definition of recorded sound is of critical importance. Special proprietary materials & construction methods make those state-of-the-art mic cables a must for direct to DISC and digital recording. Basic matters of flexibility, microphonics and shielding effect have been designed to meet international professional requirements.
Operating Principle | Pressure Gradient |
Transducer | Condenser |
Polar Pattern | Cardioid, Figure 8, Omnidirectional |
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 0.5% 127 dB SPL 0.5% with 10 dB Pad Engaged |
Impedance | 200 ohms |
Load Impedance | 1 kOhms |
Sensitivity | 28 mV/PA @ 1 kHz into 1 kOhms 22 mV/PA @ 1 kHz into 1 kOhms 20 mV/PA @ 1 kHz into 1 kOhms |
Power Requirements | 48 V+/- 4 V |
Pad | Yes, 10 dB |
Output Connectors | 3-Pin XLR |
Operating Current Consumption | 0.8µA |
General | |
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Length | 7.87 " (200 mm ) |
Diameter | 2.20" (56 mm) |
Weight | 1.10 lb (500 g) |
Packaging Info | |
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Box Dimensions (LxWxH) | 11.339 x 11.0 x 6.299" |
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 |
Packaging Info | |
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Box Dimensions (LxWxH) | 16.4 x 14.2 x 4.7" |
Cable Type | XLR microphone cable |
Length | 15' (4.5 m) |
Gauge | 4 x 24 AWG |
Shielding | 100% spiral shield |
Connector 1 | 3-Pin XLR male |
Connector 2 | 3-Pin XLR female |
Packaging Info | |
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Box Dimensions (LxWxH) | 9.37 x 7.165 x 0.787" |