Lanzar Upgraded 12&rdquo; High-Power Performance Midbass - 400 Watt  Speaker 45-4.8kHz Frequency Response 80 Oz Magnet Structure 4 Ohm 2&rdquo; Temperature Kapton Voice Coil w/ 94.50dB Sensitivity - Lanzar PROHEMID12 45 - 4.8 kHz FREQUENCY RESPONSE: Lanzar, 12'' paper cone speaker has 80 oz magnet structure and frequency response that complete the package. These rugged loudspeaker drivers do an impressive job with reproducing sound frequencies in a wide range POWERFUL 400 WATTs: This vibe 8 midrange speaker series power handling up to 400 watts peak because it is equipped with 80 oz. housed structure. Also, pack with exceptional 94.50dB (1w/1m) decibel sensitivity and vas at 103.788 liter 4-OHM MIN IMPEDANCE: This mid range car speaker has 4-ohm impedance rating that compensates the undersized wire found in many of todays cars. Includes custom molded grill and hardware KAPTON VOICE COIL: Lanzar speakers are capable of 2 higher or elevated temperature strength and 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 12 inches with a mounting depth of 4.85''. It's all housed in cloth edge with paper cone and steel frame that provides a strong foundation