Inexpensive so-called DJ speakers are typically variants on inexpensive live sound PA speakers, and while they can play loud they for the most part use inferior components and sound quite terrible. To have something of that variety worth owning new be prepared to double your budget. For what you want to spend go used; a good source is local musical instrument stores, where you can try before you buy and possibly even get a basic warranty. There's plenty of them out there, from bands that either traded for better or broke up and pawned their gear.