I'm assuming you mean this.
http://www.dtskaraoke.com/jvcmv3prcoka.html
Home use - yes, pro use - no. The speakers aren't great, they have 10" drivers, which will be lacking on any kind of bass response in an open club especially when you pack it with people. The amp is pretty low powered as well at only 200 watts per channel continuous, it doesn't state what it's impedance (ohms) rating is. If you say you want it to rock when you work, this isn't going to do it.
For about the same price (maybe a wee bit more) you can get a very good 'rockin' system with a basic 'core' pack of music.
<EDIT> Ah Nice it looks like the admin is up to their tricks again deleting information. There was an entire system outlined here for his budget, but POOF it's gone. Well if anyone needs to know what the system was instead of the overpriced junk in the link above, PM me.