5.25" Black Poly Resin Coated Woofer Cone, 40 oz.Magnet Structure, 1" Hi-Temperature Ferro Fluid Enhanced Voice Coil, 1.75" Aluminum Film Tweeter, 180 Watts Peak Power, 4 Ohm Impedance, Frequency Response: 90-18kHz , Mounting Depth: 1.88", Includes: Speaker Wire, Mounting Screws, & Speaker Grills