Boss Audio SK653 Phantom Skull 6-1/2" 3-Way Speakers: * Power Handling, Peak: 600W * Impedance: 4 ohms * Frequency response: 40Hz-20kHz * Sensitivity: 92dB * Voice Coil: 1" aluminum * Cone Material: Poly injection * Eyes light up when speaker volume is on * Midrange: 2-1/2" Mylar cone * Mounting Depth: 3-9/16