Street Reference speakers offer impressive performance and value at a wallet friendly price.  If you're looking to upgrade your audio system at a reasonable cost, SR speakers provide big bang for your buck.
Check out the Street Reference Product line overview from Crutchfield.
Street Reference speakers blend performance and style at a reasonable price point. Component sets feature a woofer and separate soft dome tweeter capable of handling 50 watts RMS power while coaxials feature a swivel mount mylar swivel tweeter and an efficient paper cone.  Street Reference is a great entry level system and makes a huge improvement over factory systems.