grace design m902
owner’s manual
2
TABLE OF CONTENTS
Important Safety Information 3
m902 Key Features 4
m902 Frontpanel 5
m902 rearpanel 6
Unpacking and Installing your m902 6
Powering up the m902 7
Input Connections 8
Output Connections 9
Selecting an Input Source 9
About s-Lock
tm
10
About x-Feed 11
Accessing and Using the Submenu 12
Wireless Remote Control Operation 15
m902 Block Diagram 17
infrared Remote Commands 18
Specications 19
Cleaning and Maintenance 20
Warranty Information 20
Manual revisions 21
WELCOME
Thanks for purchasing the Grace Design m902 reference headphone amplifier. We build all our
products to be completely reliable and easy to use, so you can concentrate on producing great
sounding audio, not struggling with complicated equipment or difficult to use product manuals.
While the m902 has been designed to be straightforward to use, we do suggest that you spend a
little time familiarizing yourself with the features and operational functions that are contained in this
manual. Doing this now will make your experience with the m902 more enjoyable.
In the event that you encounter any technical or operational difficulties with this or any Grace Design
product, please feel free to contact us at 303-443-7454. Our office hours are from 9 to 5, Monday
through Friday, MST. Or you can e-mail your questions to: info@gracedesign.com
Also, please remember to visit our website www.gracedesign.com for the latest Grace Design product
information, owner’s manuals and technical documents.
Grace Design has been building audiophile quality products for the recording industry for over a
decade. The technology developed for the m902, and all of our products, has evolved through a
process of extensive listening, field testing and careful refinement.
Your new m902 amplifier represents a combination of absolutely pristine audio performance, robust
mechanical construction and bombproof reliability.
Regardless of what type of work you do, your m902 will faithfully serve as an invisible link between
your source audio and your headphones or speaker systems. We sincerely hope our products help you
achieve a new level of excellence in your work! -The Grace Design Team.
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