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Grace Design m101 Single Channel Microphone Preamplifier (with Ribbon Mode)

 
  • Dale #:

    GRAC-M101
  • Availability:

    In Stock
  • Available for immediate shipment and pick-up from our Jamaica, New York location. In-store pick-up is available Monday through Friday from 9:30 am to 5:30 pm

Description

Maintaining Grace Design pedigree throughout, the m101 employs balanced, transformerless, transimpedance circuit topology. With incredible bandwidth and headroom, the m101 is natural, musical and detailed, allowing engineers and musicians to consistently record vibrant, amazing tracks. Equally at... Read More

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Description

Maintaining Grace Design pedigree throughout, the m101 employs balanced, transformerless, transimpedance circuit topology. With incredible bandwidth and headroom, the m101 is natural, musical and detailed, allowing engineers and musicians to consistently record vibrant, amazing tracks. 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.

Features:

  • Fast and musical transimpedance architecture
  • Updated audio path with 0.5% precision metal film resistors 
  • New 12 position gold plated rotary gain switch
  • High performance output line driver amplifier and HPF amplifier
  • New 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 frontpanel
  • Sealed gold contact relay for Hi-Z input switching 
  • Built in power supply / no wall-wart! 
  • Led indicators for +48V, Ribbon mode, and HPF
  • Five year warranty on parts and labor 
  • Made in the USA

Eon Warranty

The m101 is equipped with a new 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. Ribbon mics, you're welcome.

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.

Two m101's can be rackmounted side by side in a standard 1U rack tray.

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Product Specs

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  
INTERMODULATION DISTORTION
@ 40dB Gain +20dBu out  
SMPTE/DIN 4:1 7kHz/50Hz <0.0020
NOISE - REFERRED TO INPUT
50Ω source <-130dB
150Ω source <-128dB
600Ω source <-124dB
CMRR
100Hz >68dB
1kHz >75dB
10kHz >65dB
PHASE DEVIATION (HPF off)
50Hz-25kHz <6°
FREQUENCY RESPONSE
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
IMPEDANCE
Mic input 8.1kΩ
Mic input, Ribbon mode 20kΩ
Hi-Z input (unbalanced) 1MΩ
Hi-Z input (balanced) 2MΩ
Balanced Output 300Ω
Unbalanced Output 150Ω
PEAK LED METER
Green threshold -14dBu
Red threshold +16dBu
MAXIMUM OUTPUT LEVEL
100k Ohm load, 0.1% THD +25dBu
WEIGHT and DIMENSIONS
2.4 lbs H1.7” x W8.5” x D9.0”
1.09 kg H4.3cm x W21.6cm x D22.8cm
POWER CONSUMPTION
100-240VAC 5 Watts Max

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