If you are saying that you are connecting the idj2 directly to the speakers... Yes, You need a amplifier. Most DJ mixers only "pre-amplify" the sound signal (like the idj2 does), but there isn't enough power to drive a set of speakers.
The path goes like this... idj2 or cd players&mixer===>Amplifier===>Speakers===>Party
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If you are saying that you are connecting the idj2 directly to the speakers... Yes, You need a amplifier. Most DJ mixers only "pre-amplify" the sound signal (like the idj2 does), but there isn't enough power to drive a set of speakers.
The path goes like this...
idj2 or cd players&mixer===>Amplifier===>Speakers===>Party