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G.H. Grassby & Associates Incorporated

Professional sound, lighting, video, & acoustic design consultants since 1990.

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Professional Sound Design Consultants


 St Michael's Cathedral

Sound Design & Custom Organ Design





Video, and

Acoustic Design



Browse our website to see how we have served our clients over the years.  We would be pleased to show you any of our installations, and to describe how we could customize a solution to meet your needs.


Do you have questions?


Contact us.

We have answers,

and we have

solutions that work!



St Lukes

Sound & Lighting Design


Our Lady of Perpetual Help

Sound Design & Custom Installation

 Maria Jacobsson 

Production & Recording