Lanzar Upgraded Opti-Drive Pro 6&rdquo;x 9&rdquo; High Power - 1600 Watt Peak 100 &ndash; 22 kHz Frequency Response 90 Oz Magnet Structure and 4 Ohm Mid-Bass w/ Compression Horn Tweeter Full Range Speaker - OPTI69HPRO4 100 - 22 kHz FREQUENCY RESPONSE: Lanzar, opti-drive pro 6x 9 high power speaker has 90 oz super strontium ferrite magnet structure, 96dB and frequency response that complete the package. Also, pack with 1.5'' horn loaded compression tweeter POWERFUL 1600 WATTs: This 6x 9 full range speaker provide up to 1600 watts peak power because it is equipped with 90 oz. housed structure. It's all housed in an accordion cloth surround with resin coated and heavy duty stamped metal basket 4-OHM MIN IMPEDANCE: This car speaker has 4-ohm impedance rating that compensates the undersized wire found in many of todays cars. Includes custom wire-mesh grills, wires and installation hardware for easy setup CCAW VOICE COIL: Lanzar speakers are capable of 1.5 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 OPTI69HPRO4 TEMPLATE: Lanzar upgraded car speaker measures 10.35'' X 7.56'' with a mounting depth of 4.02''. The high quality black paper cone accordion cloth surround with resin coated provide a strong foundation