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.
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.
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...
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...
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.
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.
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.
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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...
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. •...