Hi audio experts. From a music guy's perspective, this one is quite perplexing. We are a church had new components of our audio system installed back in November of 2015 (almost one year now) and about two months after these new components were installed we started to experience this tremendous "BOOM!!!" in the system. It doesn't happen all the time or even on a regular basis. \n\nThe first time it happened I was alone in the worship center on a phone call on my cell. I was, at the same time, testing out some new music through the sound system. Suddenly, "BOOM!!!" It scared me so much that I almost dropped my phone. I immediately ran to the amplifier switch to turn them off. I called the company that installed the new system components, but they didn't know what would have caused this. I called a friend of mine in Atlanta (an audio guru of sorts) and he said "there's no telling. It could have been any one of a number of things."\n\nThe next time it happened our band was rehearsing on a Wednesday night and "BOOM!!!!" It scared everyone to death (not literally, but it was LOUD). This was a couple of weeks after the initial "BOOM!!!"\n\nFinally, it has happened several times (5-6 times) since the initial "BOOM!!!" and has happened three times during services on Sundays. We are still no closer to determining what is causing this issue. One guy told me he believed it to be a power issue with the console and suggested we purchase a Furman power conditioner for the audio console.\n\nThe new components are:\nAudio console (Behringer X32)\nDigital Signal Processor\n2 Sub woofers\n\nAny thoughts or answers? Thanks in advance for any help this forum can offer.