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Servicing: The Bitterroot Valley, Hamilton, Stevensville, Corvallis, Florence, Darby, Lolo, Missoula and up to Polson Montana

We love Music and Video

This stuff is our passion, if you love music and video than we are going to have fun building a system together.  

About Us

 Magnum Opus is a custom audio video installation company that services commercial and residential clients. Services include complete design, installation, service and products for; audio, video, home theater, home and business automation, lighting control, landscape lighting, surveillance, access control, video conference and networking systems. 

Contact Us

Request a Quote or Free Consultation

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Free consultations are available by appointment only.

We do stock wireless surround sound and home theater products.  

Please email us or call to setup a time to enhance the audio video in your space

Magnum Opus

Magnum Opus 1680 highway 93 N. Victor, MT 59875 US

(406) 544-9022



9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm





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