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User’s Guide

MADE IN USA   •   15 YEAR WARRANTY

Printed in USA

earthworksaudio.com

M30BX

Electronic Calibration Files

Register your new measurement microphone 

within 30 days of purchase on our website at 

earthworksaudio.com/register.

Once your Measurement Microphone has been 

registered in our database, we will send you 

your ECF to the valid email address provided in 

your registration.

Warranty

All Earthworks microphones carry a fifteen-

year limited warranty (parts and labor). 

Product Registration

To help you get the most out of your 

Earthworks purchase, please take a moment 

and register your product with us online at 

earthworksaudio.com/register

.

Service & Repair

If you have any problems with your Earthworks 

products, please contact our Service & Repair 

Department.

Email:  [email protected] 

Telephone:  (603) 654-2433, ext. 119

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Measurement Microphone

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