Hertz SV 165.1 – 6.5 inches/Low/midrange sv165.1 SPL midrange 165 mm 4 Ohm 1 Pair of diameter: 165 mm Power: 150 W RMS/300 W Max Impedance: 4 Ohms Frequency Response: 120Hz – 8kHz efficiency level: 95 dB/SPL outer diameter: 66 mm InstallationDiameter: 145 mm Magnet diameter: 110 mm Overall depth – front to back: 73 mm mounting depth: 66 mm displacement: 0.5 L: 38 mm (1 1/2) Weight: 1.81 kg per piece Package Content: 2 Pieces spool diameter The SV 165.1 car audio midrange can be employed to build systems with tremendous impact. Like the SX subwoofers, the SV 165.1 features a solid, robust structure and, like all the other SPL Show components, it employs a copper voice coil wound on a two layer KSV former, for unheard of thermal and mechanical capability also in extreme circumstances. The cone features a water repellent pressed paper membrane and paper dust caps, both robust and light weight, as well as double wave damped fabric surrounds to see more at: http://www.hertzaudiovideo.com/car-audio-midrange-spl_show-sv-165-1/#sthash.l6gcpzw6.dpuf