Orion CO400C 4" 2-Way Component Cobalt Series Speaker Power Handling: Peak 225 Watts each / RMS 50 Watts Each UV Coated Paper/Fiber Blend Cone With NBR Surround 1" Two-Layer Copper Voice Coil Progressive Suspension For Superior Performance at Low and High Power Applications 13mm Metalized PEI Tweeter with flush AND Surface Mount Hardware