The question is rather short on details but if the noise is a pop, buzz or snap prior to the set turning off I`d start with a power overload or a failing power supply. Use a good UPS with voltage and frequency filtering to reduce mains noise and droops or spikes from other large loads in the building.
Danville, Indiana. Danville is a town in Center Township, Hendricks County, Indiana, United States. The population was 9,001 at the 2010 census. The town is the county seat of Hendricks County.
The Town of Danville is located in the San Ramon Valley in Contra Costa County, California. It is one of the incorporated municipalities in California that uses town in its name instead of city. The population was 42,039 in 2010. Danville hosts a farmer's market each Saturday next to the San Ramon Valley Museum. The Iron Horse Regional Trail runs through Danville. It was first a railroad that has been converted to an 80-foot wide corridor of bike and hike trails as well as controlled interse