DJing systems can help you make great music.
There are certain specific pieces of equipment needed to start as a DJ, and they can be expensive. However, once you have obtained these pieces of equipment you can build on them as you become more and more skilled at the art of DJing. These components include decks, a mixer with at least 2 channels, an amp, speakers and some sort of media library, be it a large collection of music on your computer or iPod, or crate upon crate of vinyl records.
Decks
The deck is the component that actually plays the music. Right now, outside computer DJ set ups are turn tables or CD players. CD systems are the best, as they provide longer life and great sound to whatever you are playing. Turntables tend to break down much more easily but are great because you can mix and scratch on them. They are how the art of DJing came to form. You can buy quality CD systems for around $500 and quality turntables for as low as $150.
Mixers
Mixers mix the quality and amplitude of the sound and allow you to switch from one song to the next effectively by finding similar beats and tones in completely different types of music and slowly or seamlessly merging them together. A two channel mixer is acceptable to start, but a three to four channel mixer is a better investment, especially if you have use for a microphone. Professional mixers have three to four channels, one for a mic and three for turntables or CD systems. Make sure the mixer offers a phono/line if you want to use turntables. Decent mixers can be purchased for around $200.
Speakers & Amps
Arguably the most important feature in your system, your speakers and amplifier project your sound. The main thing to pay attention to when buying amps and speakers is that the RMS power rating of your speakers is about half that of the amplifier you want to buy. If you don't do this you'll blow your speakers. The amplifier and speaker set-up will be the most expensive purchase in your DJ system, and should really be bought only after you have gotten the hang of it and are ready to play for an audience.
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