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Item # 181053 | Customer Ratings: Ratings ( 5 Based on 1 reviews)

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Grace Design M101 Microphone Preamp
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      Grace Design M101 Microphone Preamp (181053)
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      Grace Design M101 Microphone Preamp (181053)
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Single-channel, ultra wide-bandwidth preamp with special ribbon mic mode provides remarkable transparent audio quality.

In 2000, the Grace Design model 101 microphone preamp helped fuel a revolution. When people took professional recording into their own hands, it was there with all of the quality and performance of a high-end mic preamplifier, but with a price that made it available to the masses. Eight years later, and the cause moves forward with the newly redesigned m101 preamp.

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.

The m101 is equipped with a redesigned universal switching power supply that's dead quiet and accepts input voltages from 100 to 240V AC. 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 Grace's unique Ribbon Mic Mode, which bypasses the input decoupling capacitors, raises the input impedance from 8.1kO to 20kO, 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 precision 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 everyone from home recording enthusiast to top professional.

Note: For a truly outstanding sound and value, we suggest using the Grace m1011 with the CAD e300 condenser mic (see (#271261) for amazingly clear and detailed, yet warm-sounding vocals.

Grace Design M101 Microphone Preamp 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
    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
    Five year warranty on parts and labor
    Made in the USA


Grace Design M101 Microphone Preamp 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%

    INTERMODULATION DISTORTION
    @ 40dB Gain +20dBu out
    SMPTE/DIN 4:1 7kHz/50Hz: <0.0020

    NOISE - REFERRED TO INPUT
    50 Ohm source: <-130dB
    150 Ohm source: <-128dB
    600 Ohm 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: 8.1kOHM
    Mic input, Ribbon mode: 20k Ohm
    Hi-Z input (unbalanced): 1M Ohm
    Hi-Z input (balanced): 2M Ohm
    Balanced Output: 300 Ohm
    Balanced Output: 150 Ohm

    PEAK LED METER
    Green threshold: -14dBu
    Red threshold: +16dBu

    MAXIMUM OUTPUT LEVEL
    100k Ohm load, 0.1% THD: +25dBu

    WEIGHT and DIMENSIONS
    2.4 lb. H1.7" x W8.5" x D9.0"
    1.09 kg H4.3cm x W21.6cm x D22.8cm

    POWER CONSUMPTION
    100-240V AC: 5 Watts Max


Grace Design M101 Microphone Preamp

5 year parts and labor warranty. Customer must mail-in copy of warranty card.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 1 reviews)
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  • It Gave Me the Mic Sound I Was Missing

    As reviewed by Mel on 6/7/2010

    I had made quite an investment in a DAW, an interface with built-in preamps that were described as "boutique quality" and a variety of well-known microphones...and I still couldn't achieve the quality kind of voice-over and vocal sound I wanted. I felt like my mics were being "colored" in a way that was not pleasing to my ears. Then...I bought a Grace Design m101 Microphone Preamp. Suddenly, my mics sounded clearer. I was finally hearing the kind of clean quality I wanted to hear through my microphones. If I want to "dirty up" the sound, I have many ways to do it with hardware and software processing; I don't need a mic preamp to do it for me. The controls on the Grace m101 are incredibly simple and easy to operate. And the flexibility is perfect. Phantom power, no phantom power, ribbon mic preamping, a switchable high pass filter...everything I needed in a mic preamp...at an excellent price. For less than 600 bucks, I made my mics sound like a million bucks!

    10 of 10 people found this review helpful.
    Was this review helpful?
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