FTR12-4080HDX Chassis Type Cast aluminium Magnet Type Ferrite Diameter 305mm/12in Voicecoil 100mm/4in
FTR15-4080HDX Chassis Type Cast aluminium Magnet Type Ferrite Diameter 381mm/15in Voicecoil 100mm/4in
FTR18-4080FDX Chassis Type Cast Aluminium Magnet Type Ferrite Diameter 457mm/18in Voicecoil 100mm/4in
FTR18-4080HDX Chassis Type Cast aluminium Magnet Type Ferrite Diameter 457mm/18in Voicecoil 100mm/4in