An involved businessperson shows a willingness to learn, network and share ideas. Belonging to a professional trade group reflects a caring attitude. A written contract with your specific DJ protects you from unscrupulous operators. Experience brings knowledge of common problems and situations. Be sure your DJ has experience with your type of event.
References are a major part of the entertainment business.
It is a good idea to get a few client and business references. Proper attire reflects a positive image to your guests. An average of sixty minutes should be allowed for set up and sound check. Normally there is no additional charge for this service. Requests should be welcome.