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Grace Design m101 - Microphone Preamp

B&H # GRM101 Mfr # AM101
In Stock
Free Expedited Shipping
You Pay: $685.00
Product Highlights
  • Single Channel
  • Hi-Z Input
  • Ribbon Mic Mode
  • Internal Power Supply

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
10 to 75dB gain range
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
Made in the USA
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
Grace Design m101 - Microphone Preamp
  • AC Power Cable
  • Five (5) Year Warranty (Transferable)
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