... 92dB SPL 4. Impedance: 4 ohms 5. OEM,ODM Specification: Size(Type) : 6-1/2" component car audio speakers , ... 100WFrequency Response: 60-20kHzNominal impedance: 4 ohmsMidbass: 1, 6.5" midbass with glassfiber cone 2, 92dB SPL 3, Rubber ... Edge , Glassfiber Cone 4, Aluminium basket 5, 35mm Voice coil diameter Tweeter: 1, 28mm high-end ... 4, 25/28/30mm are all available. 6.5" component car speakers