Lanzar OPTI2694 Opti-Drive Pro Series 6 x 9 Inches 1200 Watt Coaxial Full Range 4 Ohm Speaker Single 6 x 9-inch Speaker - High Quality Black Paper Cone - Resin Coated Accordion Cloth Surround 1.5" High Temperature CCAW Voice Coil - 55 Oz. Super Strontium Ferrite Magnet Structure 600 Watts RMS / 1200 Watts Peak Power - Frequency Response: 80Hz -22KHz Sensitivity: 94dB (1W/1M) - 1" Neodymium Home Tweeter - 4 Ohm Impedance Overall Size: 10.35" x 7.56", Cutout Size: 8.46" x 6.22", Mounting Depth: 3.35" - Detachable Grill