These car speakers offer a high sensitivity rating of 94 +/- 3 dB, delivering louder sound with less power. They feature a 1.5” Ksv copper voice coil for enhanced sound quality and durability, and a heat-resistant design ensures reliability during intense use. The iron basket provides superior thermal management, while the built-in aluminum bullet resonator expands frequency range and improves sound dispersion and clarity. Enjoy efficient, high-quality audio with these advanced speakers.Replacement Speaker Specification:Speaker Type - Mid RangeSpeaker Size - 8 InchRMS Power - 250WMAX Power - 500WMagnet Grade - Y30Magnet Size - 120 X 60 X20mmMagnet Weight - 30 ozImpedance - 8 OHMFrequency - 100-10kHzSensitivity - 94 +/-3 dBVoice Coil - 1.5 InchVoice Coil Material - Ksv CopperCone Material - Cloth Edge Paper ConeMounting Depth - 88MMBasket Material- IronTerminal Type - High Durable Steel CardboardPackage Includes:4x Mid Range Speaker