Does your DJ have experience?
With experience comes confidence and knowledge. Many things can happen during an event, both expected and unexpected. A DJ's ability to handle any situation that could arise can have a profound effect on the success of an event. Of course, it is not just experience that counts but it is one important factor to consider.
Is your DJ a full-time professional?
Although there are many professional DJ's who only operate part-time, isn't it comforting to know that the company you may be considering is a full-time business instead of a part-time hobby?
Does your DJ have backup equipment available on-site?
In case of equipment malfunction, your DJ should always have backup equipment immediately available, not "back at the shop" in which case you could have music interruption time of an hour or more.
Does your DJ have an adequate music selection?
Does the DJ you are considering have the music knowledge and music library depth to ensure variety in music selection? Your DJ should have a library of over 10,000 titles.
Does your DJ have references?
Always check references.
Does your DJ use professional grade sound equipment?
There is a tremendous difference in quality and reliability between home stereo equipment and professional duty sound equipment. Your DJ should use nothing but the highest quality, professional sound equipment available. Only by using good equipment can you be reasonably assured of quality sound and reliable operation of the equipment.
Will your DJ guarantee you a professional service?
A good DJ should provide quality assurance to their client. They should guarantee you a professional service in writing.