Features 5x7" 3-Way Speakers Mylar Cone Piezo Tweeter 10oz Ferrite Oxide Magnet Rubber surround Specifications Dynamic Power Handling: 200 watts Nominal Power Handling: 55 Frequency Response: 65Hz - 20KHz Nominal Impedance:4Ω Speaker Sensitivity: 88dB DIMENSIONS: Mounting Depth: 78.7mm Cutout Diameter: 175.69mm Description