GRM101

AM101

Grace Design

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 8.1k to 20k , 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.None Fully balanced, transformerless, single-channel microphone preamp with optimized DI instrument inputNone Fast, musical transimpedance amplifier architecture None Updated audio path with 0.5% precision metal film resistors None Built-in switchable 75Hz, 12dB/8ve high pass filterNone Precision 12-position, gold contact, rotary switch gain controlNone 10 to 75dB gain rangeNone 10dB output trim controls for fine level adjustmentNone Switchable 48V phantom powerNone Ribbon microphone mode with an optimized signal pathNone Input impedance, and 48V lockoutNone No electrolytic capacitors in the signal pathNone Enhanced RFI interference suppressionNone Sealed gold contact relays for all signal switchingNone Minimal internal signal wiringNone Three output connectors: XLR balanced, TRS balanced and 1/4" unbalancedNone Two color, bi-phase LED peak indicatorNone Internal, universal power supplyNone Made in the USA