WANTED: CASTLE HARLECH S1 WOOFER

I need to source a polypropylene bass/mid drivers for a Castle Harlech S1 speaker. I believe the Castle Reference is 06.33. I think I blew it when accidentally plugging my new phono amp into the phono input on the amp, instead of a line level one 🙁 Does anyone have such a speaker they are willing to part with or know where they may be sourced?