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Welcome and thanks for purchasing the Grace Design m103 channel strip. We build all of our products to be completely
reliable and easy to use, so you can concentrate on making great recordings, not struggling with complicated equipment
or dicult product manuals. While you will nd the m103 is completely straightforward to use, we do ask that you spend
a little time familiarizing yourself with this product manual to help avoid any common user diculties.
In the event that you do encounter any technical diculties with this or any of our products, feel free to call us at 303-
443-7454. Our oce hours are 9 to 5, Monday through Friday, MST, or you may email any technical questions to: info@
gracedesign.com.
Also, please check out our web support page listed below for the latest Grace Design product information, owners
manuals and technical documents.
Grace Design has been building audiophile-quality products for the recording industry for over 15 years. The technology
in the m103 is the result of extensive listening, eld-testing and careful renement. Your new m103 channel strip
represents a combination of absolutely pristine audio performance, robust mechanical construction and bombproof
reliability at a reasonable price. Regardless of what audio sources you plan to record, your m103 will faithfully serve as a
versatile link between your microphone or instrument and recording device.
We sincerely hope our products help you achieve a new level of excellence in your work!
Important Safety Information 3
Safety Marking Symbols 3
Features 4
Front Panel Controls / Features 4
Rearpanel Connections 6
Installing and Connecting the m103 7
Operating the EQ Section 8
Operating the COMP Section 9
Metering 11
Setting the TRIM control 11
Block Diagram 12
Wiring Diagram 13
Specifications 14
Warranty Information 16
Manual Revisions 17