C 916.337.7712

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ROBERT JOHNSON, MM, Ed.D.

Adjunct Instructor, Music Owner/Operator, Sierra Professional Audio & Video Technologies

Robert Johnson, MA, Ed.D. is owner-operator of Sacramento-based Sierra Professional Audio & Video Technologies, providing clients with equipment rentals, services in commercial/residential systems design and integration, public event audio/video technical support, musical/theatrical sound design and reinforcement, on-location contemporary and classical recording, documentation recording, audio restoration/archiving, and forensic audio analysis.


His client list includes is vast and continues to grow. And his business has served as an asset to our local and regional communities for decades. 


Dr. Johnson also serves both the Los Rios and Sierra Community College Districts providing instruction in the areas of entertainment industry, commercial music production, live sound reinforcement, studio recording techniques, and composition with electronic media.

OUR CLIENTS

We've worked with a diverse range of clients, from small businesses to Fortune 500 companies and the President of the United States. Our client list includes names like:


• Ameriprise Financial

• The Auburn Symphony Orchestra

• Broadway @ Sierra

• Cal Expo

• Chamber Music Alive

• El Dorado Musical Theatre

• El Dorado Union High School District

• Extant Acoustical Consulting

• Liberty Towers Worship Ministries

• Los Rios Community College District

• Millennia Music & Media Systems

• The Morris Animal Foundation

• Natomas Youth Baseball

• NorCal OB/GYN Society

• Northridge Country Club

• PGA - Northern California Section

• Placer County Water Agency The Placer Pops Chorale

• Porsche Club of America - Sacramento Valley Region

• Rainbow Music

• Office of the Governor, State of CA

• The Red Hat Society - Northern CA Chapter

• The Roman Catholic Diocese of Sacramento

• Sacramento School of Music

• Sierra Christian Church

• Sierra Community College District

• Sierra Performing Arts Association

• Sacramento Philharmonic & Opera

• Sacramento Valley DJ Productions

• Wells Fargo Bank

• The White House Press Corps

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Sierra Professional Audio & Video Technologies

Sacramento, California, United States

C 916.337.7712

Copyright © 2025 Sierra Professional  Audio & Video Technologies - All Rights Reserved.

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