User Manual
ETC
®
, Source Four
®
, Source 4
WRD
™
, Sensor
®
, and Unison
®
 are 
either registered trademarks or trademarks of Electronic 
Theatre Controls, Inc. in the United States and other countries.
All other trademarks, both marked and not marked, are the 
property of their respective owners.
This product is protected by one or more of the following 
U.S. Patents: US 9,261,241 and 9,273,831.
ETC intends this document, whether printed or electronic, to be 
provided in its entirety. This product is intended for 
professional use only. Read this entire document before using 
this product. 










