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grace design m801

mk2

owner’s manual

11

Cleaning

Your m801mk2 amplifier chassis is constructed out of high quality aluminum. Under normal cir-
cumstances, virtually no maintenance is required to keep the unit looking shiny and new.  How-
ever, if your unit becomes smudged or dirty, here are some cleaning tips: Apply a small amount 
of windex cleaner to a clean,  dry,  lint free cloth and gently wipe all surfaces, taking care not to 
allow the cleaning product to build up around the panel switches or knobs. 

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. 

•  The Grace Design EON warranty period begins at either 

a)

 the date of original purchase - 

original customer proof of purchase required, or 

b)

 the date the product was originally 

shipped from Grace Design - if original customer proof of purchase is not available.

•  This warranty is transferable to any person who may subsequently purchase the product 

during this time. 

•  This warranty excludes the following conditions: normal wear and tear, misuse, customer 

negligence, accidental damage, unauthorized repair or modification, cosmetic damage and 
damage incurred during shipment. 

•  During the time of this warranty, Grace Design will repair or replace, at its option, any 

defective parts or repair defective workmanship without charge, provided the customer has 
appropriate proof of purchase and that the product has its original factory serial number. 

•  Customers within the US are responsible for all inbound freight charges to Grace Design’s 

facility, while Grace Design will pay for return freight charges via ground service. Customers 
outside the US must contact their distributor for warranty / product return details. 

•  In order for Grace Design to provide efficient and timely warranty service, it is important that 

you mail the completed warranty registration card enclosed with all of our products within 
10 days of the original date of purchase. You may also register your product directly with 
Grace Design by telephone (303-823-8100 Monday-Friday 9:00am to 5:00pm MST), or you can 
register your product online at www.gracedesign.com. 

•  This warranty is in lieu of all other warranties whether written, expressed, or implied, INCLUDING 

ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. In no 
event will Grace Design be liable for lost profits or any other incidental, consequential or 
Exemplary damages, even if Grace Design is aware of the possibility of such damages.

•  In no event will Grace Design’s liability exceed the purchase price of the product. This 

warranty gives the customer specific legal rights. The customer may also have other rights, 
which vary from state to state. Some states do not allow limitations on implied warranties or 
consequential damages, so some of the limitations of the above may not apply to a particular 
customer.

Содержание m801mk2

Страница 1: ...Owner s Manual Rev A All contents Grace Design Lunatec LLC 303 823 8100 www gracedesign com 8 Channel Microphone Preamplfier ...

Страница 2: ...pabilities of the m801mk2 Also please do not hesitate to contact us directly if you have any questions comments or concerns with your new m801mk2 microphone preamplifier Thanks for reading and happy recording The Grace Design Team Contents Welcome 2 Important Safety Information 3 GENERAL 3 SAFETY MARKING SYMBOLS 3 SERVICE INFORMATION 3 Front Panel Controls 4 Rearpanel Connections 5 Installation 6 ...

Страница 3: ...uitable for continuous operation Weight 12 0lbs 5 44kg SAFETY MARKING SYMBOLS CAUTION READ ACCOMPANYING DOCUMENTS This symbol located on the equipment and in this manual refers to important instructions Read this manual thoroughly before operating this equipment WARNING ELECTRICAL SHOCK HAZARD This symbol located on the equipment and in this manual indicates the potential for electrical shock haza...

Страница 4: ... the filter capacitors discharge As well even if the phantom power is switched off the LED will illuminate if voltage is being fed from an external source i e when using a direct split in a remote recording application D PHASE REVERSAL SWITCH The phase reverse switch reverses the absolute polarity of the music signal at the input of the preamplifier The switch illuminates green and provides power ...

Страница 5: ...reamplifier Fuses are two T800mA 250V 5mm x 20mm Time Delay Fuses B XLR MIC INPUT CONNECTOR Input connections are made via female XLR con nectors with pin 2 positive pin 3 negative and pin 1 ground 48V phantom power is supplied on pins 2 and 3 C XLR OUTPUT CONNECTOR Output connections are made via male XLR con nectors with pin 2 positive pin 3 negative and pin 1 ground D PARALLEL XLR OUTPUT CONNEC...

Страница 6: ...quire any extra ventilation 4 Rack screws are included in the box AUDIO CONNECTIONS Microphone input connections are made via female XLR connectors with pin 2 positive pin 3 nega tive and pin 1 ground 48V phantom power is supplied on pins 2 and 3 Output connections are made via male XLR connectors with pin 2 positive pin 3 negative and pin 1 ground If the output is to be used unbalanced pin 1 shou...

Страница 7: ...ophones by boosting the gain by 10dB while disabling 48V phantom power and increasing the input impedance Before activating ribbon mic mode make sure the channel s gain is fully down counter clockwise and 48V phantom power is off Now simply press the ribbon switch and turn the gain control upwards until the proper recording level is achieved If you press the 48V phantom switch while the ribbon swi...

Страница 8: ...he generator preamplifier then the level meter 8 Adjust the generator output level so that the preamplifier output level is at 16dBu 4 88VRMS or another desired red threshold level If the proper level can t be reached adjust the preamplifier gain control 9 Locate VR2 see figure 3 p 9 on the channel 1 audio circuit board and adjust until the peak LED is between green and red Repeat this procedure f...

Страница 9: ...te DC offset potentiometer VR1 and rotate it for a reading that matches the minimum gain reading 0 005V 8 The objective is to get the minimum gain offset and the maximum gain offset to match as closely as possible 9 The input offset does drift with temperature and having the lid off will allow the circuitry to cool It is advisable to replace the lid and let the preamplifier warm up again about 20 ...

Страница 10: ...eighting 130dB 40dB gain 150Ω source 22 22kHz 125dB 40dB gain 150Ω source A weighting 128dB 20dB gain 50Ω source 22 22kHz 117dB 20dB gain 50Ω source A weighting 120dB 20dB gain 150Ω source 22 22kHz 117dB 20dB gain 150Ω source A weighting 119dB GAIN RANGE Default Mode 18 64dB 2dB steps Ribbon Mode 28 74dB 2dB steps PHASE DEVIATION 40dB gain 40Ω source 75Hz 45kHz 3 CROSSTALK Any Channel 40dB gain 1k...

Страница 11: ...ve workmanship without charge provided the customer has appropriate proof of purchase and that the product has its original factory serial number Customers within the US are responsible for all inbound freight charges to Grace Design s facility while Grace Design will pay for return freight charges via ground service Customers outside the US must contact their distributor for warranty product retu...

Страница 12: ...grace design m801mk2 owner s manual 12 Manual Revisions Revision Page Change Date Initials A all initial release 11 08 18 edg ...

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