Grace m801mk2 Owner's Manual

Grace m801mk2 Owner's Manual

8 channel microphone preamplfier

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8 Channel Microphone Preamplfier
Owner's Manual Rev A
All contents © Grace Design/ Lunatec LLC
303.823.8100 • www.gracedesign.com

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Summary of Contents for Grace m801mk2

  • Page 1 8 Channel Microphone Preamplfier Owner’s Manual Rev A All contents © Grace Design/ Lunatec LLC 303.823.8100 • www.gracedesign.com...
  • Page 2: Table Of Contents

    We have designed the m801mk2 to be as easy and intuitive to use as possible. However, we strongly recommend that you read this manual thoroughly to familiarize yourself with the unique features and capabilities of the m801mk2.
  • Page 3: Important Safety Information

    The Grace Design m801mk2 contains no user serviceable components. Contact Grace Design for re- pair and upgrade information. In the event that your Grace Design m801mk2 needs to be returned to the factory, contact us for a return authorization number.
  • Page 4: Front Panel Controls

    20k Ohms. LED will illuminate if voltage is being fed from an external source (i.e. when using a direct split in a remote recording application). grace design m801 owner’s manual...
  • Page 5: Rearpanel Connections

    Input connections are made via female XLR con- cording devices or mixers. nectors with pin 2 positive, pin 3 negative and pin 1 ground. 48V phantom power is supplied on pins 2 and 3. grace design m801 owner’s manual...
  • Page 6: Installation

    The m801mk2 uses two T800mA 250V~ 5mm x 20mm Time Delay Fuses. MOUNTING The m801mk2 can be rack mounted in a standard 19” equipment rack and does not require any extra ventilation. 4 Rack screws are included in the box.
  • Page 7: Preamplifier Operation

    Maintenance The model m801mk2 was designed to be maintenance free for many years. It is highly unlikely that your unit will require service. However, there are two adjustments that may need to be made from time to time.
  • Page 8: Input Offset Adjustment

    INPUT OFFSET ADJUSTMENT The input amplifiers in the m801mk2 are ultra-precision laser trimmed devices which have a very low input offset. However, even the smallest differential offset at the input can result in an audible “click” when the gain control is turned. It should be noted that this type of click will be audible when no signal is present.
  • Page 9 PEAK LED CAL +10dB GAIN / AUTO TEST POINTS OFFSET +48V C44 J4 OFFSET TP10 +48V AT211 Rev GAIN +15V REG +10dB AUTO METER -15V REG figure 3 - offset test point and peak LED adjust trimpots grace design m801 owner’s manual...
  • Page 10: Specifications

    +16dBu Out IMPEDANCE Input Nominal 8100Ω Input Ribbon Mode 20KΩ Input Pad Engaged 1.3KΩ Output 150Ω DIMENSIONS Weight 12.0lbs (5.44kg) Height Width 19” Depth 10” POWER SUPPLY SPECIFICATIONS POWER CONSUMPTION 100-240VAC 50/60Hz 40 Watts max grace design m801 owner’s manual...
  • Page 11: Cleaning

    Warranty Information The Grace Design EON limited warranty guarantees this product to be free of defective parts and workmanship for a period of twenty years. •...
  • Page 12: Manual Revisions

    Manual Revisions Revision Page Change Date Initials initial release 11/08/18 grace design m801 owner’s manual...

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