Grace Design M101-GRACE

m101 Single Channel Preamplifier / DI

OUR PART #:  M101-GRACE Write the First Review.

Grace Design M101-GRACE 1
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Our Price: $765.00
List Price: $850.00
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  • Fast and musical transimpedance architecture
  • Updated audio path with 0.5% precision metal film resistors
  • 12-position gold-plated rotary gain switch
  • High-performance output line driver amplifier and HPF amplifier
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The Grace Design m101 is equipped with a universal switching power supply, which is dead quiet and accepts input voltages from 100 to 240VAC. The front panel is a tough black anodized / laser etched black, which ensures legibility and usability in varying light conditions. And all preamp functions have a dedicated indicator LED, including the 48V phantom power and HPF switch.

Built in as standard is a unique Ribbon Mic Mode, which bypasses the input decoupling capacitors, raises the input impedance from 8.1k ohms to 20k ohms, and defeats the 48V phantom power, preventing damage to delicate ribbon mic elements.

The gain range is 10-75dB, including the additional +10dB of gain available with the output trim control. This provides ample gain for use of any type of microphone in any recording situation. The gain control is a presicion gold plated 12 position switch and the circuit path is built with 0.5% metal film resistors.

Included is a HI-Z input on the front panel. Rear panel I/O options include both balanced TRS and unbalanced TS 1/4” outputs, along with the standard XLR balanced out and XLR microphone in.

Equally at home amplifying a vintage condenser mic or a plugged-in acoustic guitar, the m101 delivers the kind of high fidelity performance previously available only to big budget recording studios and Grammy winning musicians. Add it all up while considering that the price is unmatched and the picture becomes pretty clear – the m101 is one little hot rod piece of pro audio gear for the masses.

Two m101's can be rackmounted side by side in a standard 1U rack tray (not included). The m101 chassis has a #10-32 threaded insert mounting hole on the bottom towards the back. Two m101s can be mounted side by side in a standard 1U rack tray. Use a #10-32 x 1/2” or a #10-32 x 3/8” machine screw. Do not use a screw longer than 1/2”

Grace Design m101 Features:

  • Fast and musical transimpedance architecture
  • Updated audio path with 0.5% precision metal film resistors
  • 12-position gold-plated rotary gain switch
  • High-performance output line driver amplifier and HPF amplifier
  • Ribbon mic mode (also great for dynamic mics)- Relay bypass of phantom power decoupling capacitors, increased input impedance, and 48V lockout
  • Wider 10-75dB gain range
  • Enhanced RFI interference suppression
  • Three output connectors: XLR balanced, TRS balanced and 1/4" unbalanced
  • Bombproof laser-etched black anodized front panel
  • Sealed gold contact relay for Hi-Z input switching
  • Built-in power supply - no wall wart!
  • LED indicators for +48V, Ribbon mode, and HPF
  • Made in the USA
  • Comes with Grace Design's transferrable EON Limited 20 YearWarranty!

Grace Deisgn m101 Specifications:

  • GAIN RANGE (5dB steps)
    • Mic input 10-65dB
    • Hi-Z input -10-45dB
    • Output trim control 0 to +10dB
  • THD+N
    • @ 20dB Gain +20dBu out < 0.00085%
    • @ 40dB Gain +20dBu out < 0.0010%
    • @ 60dB Gain +20dBu out < 0.0050%
    • @ 40dB Gain +20dBu out
    • SMPTE/DIN 4:1 7kHz/50Hz
    • 50 ohm source < -130dB
    • 150 ohm source < -128dB
    • 600 ohm source < -124dB
  • CMRR
    • 100Hz >68dB
    • 1kHz >75dB
    • 10kHz >65dB
    • 50Hz-25kHz < 6°
    • Mic input @ 40dB Gain -3dB 4.5Hz-390kHz
    • Mic input @ 40dB Gain -0.5dB 10.5Hz-140kHz
    • Hi-Z input @ 20dB Gain -3dB 2.5Hz-195kHz
    • Hi-Z input @ 20dB Gain -0.5dB 6Hz-74kHz
    • Mic input 8.1k ohms
    • Mic input, Ribbon mode 20k ohms
    • Hi-Z input (unbalanced) 1M ohms
    • Hi-Z input (balanced) 2M ohms
    • Balanced Output 300 ohms
    • Balanced Output 150 ohms
    • Green threshold -14dBu
    • Red threshold +16dBu
    • 100k Ohm load, 0.1% THD +25dBu
    • 2.4 lbs H1.7” x W8.5” x D9.0”
    • 1.09 kg H4.3cm x W21.6cm x D22.8cm
    • 100-240VAC
    • 5 Watts Max

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