few not bad consumer grade speakers mentioned above, but if you expect to bring speakers to college party - the loudness required at continuous playback will more than likely ruin all of them
PA speakers like even cheapest Behringers I mention above are designed to just for that to handle loud playback over extended time periods. Also keep in mind they are active - do not required external amplifier.
Are they top-end speakers or will work for concerts - definitely NO, but on your budget these should do.
If you decide to buy any consumer equipment to save few bucks, you'd very likely find yourself soon spending money AGAIN to replace damaged speakers