SEAS Lotus L0019-04S (SW250/1) - information in PDF format (380 Kb)
Subwoofer with aluminium chassis and aluminium 10″ cone.
Air Core Coil.
Midwoofer with coated fibre glass cone and 8-ohm voice coil.
Air-core OFC foil coil.
High-purity copper coil wound around a iron core (with discs).