Skar Audio TX4 4" 120W 2-Way Elite Coaxial Car Speakers, Pair Peak Power: 120 Watts (Pair) RMS Power: 60 Watts (Pair) 1.25" Copper Voice Coil | Impedance: 4 Ohms Sensitivity: 84 dB, Frequency Response: 60 Hz - 21,000 Hz Featuring a 1" High Performance Silk Dome Tweeter Mounting Depth: 1.96" | Includes Speaker Grilles RMS Power: 60 Watts (Pair) Max Power: 120 Watts (Pair) Impedance: 4 Ohms | Sold as a Pair 1&#034; (25.4mm) High Grade Silk Dome Tweeter Glass Fiber Cone 1.25&#034; Copper Voice Coil Frequency Response: 60 Hz - 21,000 Hz Sensitivity: 87 dB Mounting Depth: 1.96&#034; Cutout Diameter: 3.85&#034;