1. Car stereo speaker. 
2. Hybrid colored olefin. 
3. Butyl rubber rolled edge. 
4. 20mm heat-resistant V. coil.
1. Nominal impedance: 4ohm. 2. Maximum music power: 240w. 3. Nominal impedance: 4 ohm. 4. Maximum music power: 150w. 5. Sensitivity: 90dB. 6. 6.5" components.