You have decided to make some money working as a DJ. If you are working in the club most of your equipment will be supplied for you, but if you decide to book and work gigs on your own, you will be required to own and set up your equipment. This means that you must have the right DJ amplifier to go with your speakers. DJ's tend to spend a lot of money of the right combination of DJ amplifiers and speakers, but that makes sense since it is their bread and butter.
The first place to look when buying an amp is listen to, look and see what everyone else is using. This will give you an idea about some of the more popular brands. Make sure you hear the amp and speaker combination with the kind of music you expect to be playing. Many brands perform specific categories of music better than others based on their frequency characteristics and sound qualities. Know your budget and what makes and models fall in the range you can afford comfortably. Discuss the pros and cons of the amplifiers with the professionals that sell them. See and read the reviews on the products that you have an interest in. There are plenty of forums online that will steer you in the right direction with no loyalty to one particular model or another.
Once you identify the DJ amplifier that you want ensure that it is not too large for your speakers to handle. If you amplifier is putting out too much power for your speakers to handle, you run the risk of blowing your speakers. The other side of that is the fact that you want to make sure that you are putting out enough power to efficiently drive the speakers, getting the sound that you want and need in a variety of spaces.
You will always want to purchase a DJ amplifier that can put out slightly more power then your speakers can handle because this will allow you to set your amplifier at a setting that is not wide open. If your speakers will handle 300 watts RMS and your amplifier will put out 500 watts you will be able to run your amp at a little over half power. This will extend the life of your amp and ensure that you do not blow your amp during an event or party.
The life of a DJ can be fun, while making some extra money. Ensure that you have the right equipment to handle all types of situations.