Grace Hills had gone the route that many churches do when installing a new sound system. Someone had a friend that worked at a music store, so speakers were bought and hung by chain in various locations. 

After a few years of poor sound, they called us. We went in and discovered that the location of the speakers and subwoofers were causing far too much "comb filtering". This is an effect where depending on where you sit in the room, you hear different frequencies far greater or lesser than in the seat next to you. 

We rehung their existing speakers in a configuration that provides them with tremendous clarity and energy. We also implemented a new digital mixing system.

The room gets a sound that’s balanced and consistent. It has accomplished exactly what we wanted to see happen.
— Mike Johnson, Grace Hills Church