Usually, the company that offers you their DJ liability insurance can also offer you insurance on the equipment. Djtasco also mentioned another route. I thought I’ve heard of some using an umbrella policy which they pay to also insure their business. You should talk to your insurance agent. I use a company that specializes in insuring people in the entertainment business when I have an issue with insurance I can call my contact who understands the insurance as it relates to DJ services. I deal with municipalities, governmental agencies, and universities and sometimes insurance requirements and contracts get a little complex. One of the first things you should do is make a list of all of your equipment with serial numbers and take photos.