3" Sandwich voice coil Fiberglass former and Aluminium Winding PS Konex Spider with Progressive Waves DAR Cloth surround with Double Asymmetric Rolls Technology (DAR) AWpT Autoclave Waterproof Cone Treatment CDR Neodymium Magnet Circuit with Copper Demodulating Ring VMVc Ventilated Magnet and Voice Coil to reduce Power Compression 95.1 dB sensitivity Frequency Range 65-3000 Hz

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