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. Street Reference coaxial speakers offer impressive performance and value at a wallet friendly price. This complete line of speakers features multiple sizes providing factory replacement solutions that will fit most vehicles. If you're looking for a factory audio upgrade without breaking the bank, Street Reference coaxials will be a perfect fit. Features: Efficient paper cone Mylar tweeter Lightweight foam surround Shallow mounting depth Sizes to fit most factory locations Specifications: Size (in) 4" RMS Power (w) 20 Peak Power 40 Sensitivity (dB) 88 Mounting Depth (in) 2 Magnet Size (oz) 5.4 Warranty 1 year No Grill included