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 the 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 ensure linearity even under extreme conditions, contributing the high SPL scores.
Size mm (in.) 165 (6.5) Power Handling - Peak W 400 Impedance Ω 4 Frequency response Hz 100 ÷ 10k Sensitivity dB SPL 97 Voice coil Ø mm (in.) 38 (1.5) Magnet High density flux ferrite Cone/Dome Ultra light pressed paper - See more at: http://www.hertzaudiovideo.com/car-audio-midrange-spl_show-sv-165-1/#sthash.5aM5XrgG.dpuf