SEAS Lotus L0019-04S (SW250/1) - information in PDF format (380 Kb)
Subwoofer with 10¼″ aluminium cone.
Subwoofer with aluminium chassis and aluminium 10″ cone.
XXLS-series subwoofer with 10″ auminium cone, ferrite motor and 4-Ohm voice coil.
FERON iCore coil.
High-purity copper coil wound around a Permite core (with discs).
Coil wound around a toroidal sandwich core.