RetroSound® Premium Stereo Speakers provide the absolute best audio quality possible in your classic car or truck.  For high-power handling with an ultra-thin mounting depth, a Neodymium magnet structure is used with a dip-cut design to prevent distortion. The Santoprene® surrounds provide the most accurate audio reproduction possible, and the silk tweeters produce smooth and more natural-sounding highs. 4x6-inch stereo speakers (sold as a pair) Neodymium magnet structure for ultra-thin design Santoprene® surrounds for accurate audio reproduction Silk tweeters produce smooth and natural highs Dip-cut magnet for enhanced sound TrueRating power handling: 25 watts RMS/50 watts MAX power Includes Mounting Bracket for GM Vehicles Mounting depth just 1.37-inches (35mm) MODEL R-463N Nominal Diameter (inch) 4x6 Description 2-Way Nominal Impedance 4ohm Frequency Response 80Hz-21kHz Sensitivity (SPL@1w/1m) 86dB Power Handling (watts RMS/peak) 25/50 Speaker Grill YES Mounting Depth (inch) 1.37 Mounting Depth (mm) 35