The heritage, quality and success of Scan-Speak’s designs during decades live on in the Classic family, with such patented and proprietary technologies as; Symmetrical Drive, Low Loss Linear Suspension, air dried paper/carbon fiber cones and coated textile diaphragms. 18 cm Midwoofer8 ohm, Nylonfiber Paper Cone FE mag, black coat - Patented Symmetrical Drive Motor Design - 42mm Voice Coil - Low Damping Black Coated Foam Surround - Air Dried Paper/Nylon Fibre Cone - Low-Loss linear suspension - Die-cast alu. chassis