Grace Design M501 Users Manual

m

501

2434 30th Street, Boulder, CO 80301 USA
tel [phone] fax [phone]
[e-mail] / www.gracedesign.com

500 series microphone preamplifier module

owner’s manual Rev A

all contents © Grace Design/ Lunatec LLC

Welcome and thanks for purchasing the Grace Design m501 microphone 500 series preamplier and
instrument DI. We design and build our products to be completely reliable and easy to use, so you
can concentrate on making great recordings, not struggling with complicated equipment or dicult
product manuals. While you will nd the m501 is completely straightforward to use, we do ask that you
spend a little time familiarizing yourself with this product manual to help avoid any diculties.

In the event that you do encounter any issues with this or any of our products, feel free to call us at
303-443-7454. Our oce hours are 9 to 5, Monday through Friday, MST, or you may email any technical
questions to: [e-mail].

Also, please check out our web site (www.gracedesign.com) for the latest Grace Design product infor­mation, owners manuals and technical documents.

Grace Design has been building audiophile-quality products for the recording industry over 15 years.
The technology in the m501 is the result of extensive listening, eld-testing and careful renement.
Your new m501 preamplier 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 m501 will faithfully serve as an invisible 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!

The Grace Design Team

CONTENTS

IMPORTANT SAFETY INFORMATION 3

GENERAL 3
SAFETY MARKING SYMBOLS 3
SERVICE INFORMATION 3

FEATURES 4

FRONT PANEL FEATURES 4

m501 CONNECTIONS 5

BASIC OPERATION 6
USING ThE TRIM CONTROL 6
USING RIBBON MIC MOdE 6
USING ThE hPF 6

CABLE DIAGRAMS 7

BASIC WIRING DIAGRAM 7

CARD EDGE CONNECTOR CONTACT ASSIGNMENTS 7

SPECIFICATIONS 8

WARRANTY INFORMATION 9

MANUAL REVISIONS 10

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IMPORTANT SAFETY INFORMATION

GENERAL

•Indoor use only

•Ordinary Protection: This equipment should not be exposed to dripping or splashing.

•Avoid placing objects lled with liquids, such as vases or glasses, on this equipment.

•Pollution Degree 2

•Maximum Relative Humidity: <80%

•Operation temperature range: 10 °C to 40 °C

•Storage and transportation temperature range –40 °C to 70 °C

•Maximum altitude: 3000m (9843 ft)

•Equipment suitable for continuous operation

•Weight: preamplier 0.31kg (.7lbs)

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 hazard.

SERVICE INFORMATION

The Grace Design m501 contains no user serviceable components. Contact Grace Design for repair and upgrade
information. In the event that your Grace Design m501 needs to be returned to the factory, contact us for a
return authorization number.

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