Hertz SV 200L MidBass DriverSV 200L The Hertz SV 200L car audio woofers was designed to offer superior performance in terms of both thermal and mechanical capability. The target has been fully hit since the woofer features a pure copper voice coil wound on KSV former, an oversized magnet and a vented bottom plate. The SV 200L employs the proprietary V cone technology with the cone constructed from pulp with cotton fibre as well as Lossless Polymer Rubber Surround, offering a