Lanzar Upgraded Opti-Drive Pro 8&rdquo; Coaxial Car Speaker - Powerful 1200 Watts 4 Ohms Paper Cone w/ 70Hz - 22 KHz Frequency Response and 55 Oz Magnet Structure Full Range Subwoofer - OPTI824 70Hz - 22 KHz FREQUENCY RESPONSE: Lanzar, opti-drive pro car speaker has 55 Oz super strontium ferrite magnet structure and frequency response that complete the package. It is equipped with 1'' neodymium home tweeter and exceptional 94dB density POWERFUL 1200 WATTS: These 8 coaxial speakers provide up to 1200 watts of two-way sound because it's equipped with a 55 oz. housed structure. It's all housed in an accordion cloth surround with resin coated that looks great 4-OHM MIN IMPEDANCE: This full range subwoofer speaker has a 4-ohm impedance rating that compensates for the undersized wire found in many of todays cars. Includes custom molded grille, mounting template and wiring for easy setup CCAW VOICE COIL: Lanzar speakers are capable of 1.5 higher or elevated temperature strength and non-fatigue properties. It will increase performance and efficiency of heavy-duty play time through lower weight and higher operating temperatures SIZE: Lanzar upgraded car speaker measures 8.66'' with a mounting depth of 3.35''. The high-quality black paper cone and accordion cloth surround with resin coated provide a strong foundation