This XS452 is a 4" Two-Way Speaker System. It also falls into the Xenith Series category. High quality and high value come together in the all new Xenith speakers. The product features a 4" Open Basket 2-Way Coaxial High-Fidelity Speaker System. The car speakers feature a Black Piano Finish, Acrylic Speaker Cone. The Translucent Smoke Finish Bridges provide a great look for the Two-Way Speaker System. The 4" Two-Way Speaker System has a Linear Progressive Conex Spider. The Speaker Driver has Polymide Dome Tweeters. It also includes a Capacitor Crossover Network. In addition, the Super Slim Design Facilitates Easy Door Installation for the 4" Two-Way Speaker System. The Extended Frequency Response Speakers provide a great speaker performance. Butyl Rubber Surround produces a great sound. It also includes Complete Pair with Grills, Installation Hardware, and Color Coded Speaker Wire. Featuring an RMS Power Handling of 30 Watts per Speaker. Also, it has a Peak Power Handling of 100 Watts per Speaker // 200 Watts per System. The Frequency Response pushes 85Hz - 20 k Hz while the Sensitivity pushes 88 dB. It has a System Impedance of 4-Ohm. The Magnet Weight is 45 oz. It has a Structure Weight of 20 oz. It has a Cutout Diameter of 3.63". The Mounting Depth is 1.70". The size of the Speaker is 4”.